Communication terminal measurement system, communication terminal measurement apparatus, and measurement-related information display method

ABSTRACT

In a control device  22  having a control unit  31  that controls an NR measurement device  20  and an LTE measurement device  21  and a display unit  33  that displays control contents of the control unit  31 , the control unit  31  controls the display unit  33  such that the display unit  33  displays an NR simulation parameter display area  33   c   1  or an LTE simulation parameter display area  33   c   2  in accordance with the communication standard of the selected NR or LTE, in a case where the selection of either NR or LTE is received on the communication standard identification tabs  41   a  and  41   b  of the main screen  33   a.

TECHNICAL FIELD

The present invention relates to a communication terminal measurementsystem having a measurement function of a mobile communication terminaland a display control function of information relating to measurement, acommunication terminal measurement apparatus, and a measurement-relatedinformation display method, for performing a test of a mobilecommunication terminal by simulating a base transceiver station in anoperation mode in which new and old communication standards are mixed.

BACKGROUND ART

For example, in a mobile phone system, a speed of wireless communicationwith a wireless base transceiver station (hereinafter, a basetransceiver station) is increased in accordance with the increase in thenumber of functions of a mobile terminal. In recent years, for example,a technology development for shifting from fourth generation (4G)services employing the LTE-Advanced system to fifth generation (5G)services is in progress.

In realizing a new wireless communication system (NR) for 5G, anon-standalone NR operated by a combination of LTE and NR disclosed inNon-Patent Document 1 is studied. Further, as disclosed in Non-PatentDocument 2, non-standalone NR operation is based on use in combinationof the carrier aggregation (hereinafter referred to as CA) technologyand the dual connectivity (hereinafter referred to as DC) technology. Inthe CA technology, communication is performed by bundling componentcarriers (hereinafter, referred to as CCs) used before the LTE-Advancedstandard in the same base transceiver station. In the DC technology,communication between an NR base transceiver station and an LTE basetransceiver station is performed simultaneously.

First, the non-standalone NR operation will be described.

The non-standalone NR operation is being considered to be employed inthe transition stage to a standalone system that can be operated onlywith NR, and is an operation mode for providing the 5G wireless serviceusing the existing LTE/LTE-Advanced area and the NR area in combination.

In the non-standalone NR operation, for example, as shown in FIG. 24, anevolved packet core (EPC) is employed as a core network, and an LTE areaand an NR area are mixed in the core network. In the LTE area and the NRarea, a plurality of base transceiver stations (1st base transceiverstation supporting LTE) to LTEn (nth base transceiver station supportingLTE) and NR1 (1st base transceiver station supporting NR) to NRn (nthbase transceiver station supporting NR) may exist, respectively.

In the existing LTE/LTE-Advanced, there is a technology that employs aCA technology that bundles CCs of the same base transceiver station(BTS). However, in non-standalone NR operation, in addition to the CAtechnology, NR and LTE are combined with a DC technique that bundlescarriers between different BTSs in each area.

In the network configuration of the non-standalone NR, theabove-described DC performs data communication using radio resources oftwo BTSs called a master node and a secondary node. In this case, forexample, as shown in FIG. 25, the following technology is employed. Amaster node MNB (Master Node BTS) serves as a branch point for user datatransmission, and downlink data transmitted from an S-GW (Serving GateWay) through an S1 interface is transferred to the carrier of thesecondary node SNB (secondary Node BTS) through the carrier of themaster node MNB or the X2 interface, thereby performing transmission tothe carrier of the secondary node SNB.

In the DC in non-standalone NR operation, radio resource control (RRC)for connecting to a network is established only with the master nodeMNB, and controls the secondary node SNB through the master node MNB.This type of control includes control of addition of a secondary nodefor setting a carrier provided by the secondary node SNB to a userequipment (UE), which is a terminal, and control of deletion of asecondary node for deleting the carrier.

As an example, FIG. 26 shows a procedure for deleting a secondary node.In this deletion procedure, first, the user equipment UE transmits ameasurement report to the MNB which is a base transceiver stationoperating as a master node to connect to the MNB, and then the DCsetting procedure is executed in a case where it is notified through theuser equipment UE that the quality of the cell subordinate to the SNBserving as the base transceiver station, in which the MNB is set as asecondary node, is favorable.

In the DC setting procedure, the base transceiver station MNB transmitsa DC setting request (SN AdditionRequest) to the SNB (Step S01). The SNBstores the radio parameter information of the subordinate cell in aresponse signal (SN Addition Request Acknowledgement) to the DC settingrequest, and transmits the signal to the SNB (step S02). Subsequently,in a case of receiving the response signal from the SNB, the MNBtransmits a radio resource setting signal (RRC connectionreconfiguration) to the user equipment UE (step S03). The user equipmentUE transmits a completion notification (RRC connection reconfigurationcomplete) corresponding to the setting signal to the MNB (step S04),starts a synchronization establishment procedure for the SNB, andreaches a connection status where connection with the SNB is establishedupon completion of the procedure.

Upon receiving the completion notification from the user equipment UE,the MNB transfers a completion notification (SN reconfigurationcomplete) to the SNB (Step S05), and completes the DC setting procedure.Thereafter, the base transceiver station MNB executes processing ofdistributing downlink user data sent from the S-GW to the basetransceiver station SNB.

Further, a protocol stack as shown in FIG. 27 is employed in the DC inthe non-standalone NR operation. In a configuration of the existing LTE,between the base transceiver station and UE, a packet data convergenceprotocol (PDCP) layer, a radio link control (RLC) layer, a medium accesscontrol (MAC) layer, and a physical (physical) layer from the top areset. On the other hand, as shown in FIG. 27, in the DC, a plurality ofbase transceiver stations communicate with the user equipment UE. Thus,the protocol stack is separated on the base transceiver station sideunder the PDCP layer in the MNB, and the protocol stack similar to theconventional one is prepared for each of the MNB and the SNB on the RLClayer and the following layers. On the other hand, on the user equipmentUE side, a protocol layer corresponding to each is prepared.

In the DC, a primary cell (PCell) and a secondary cell (SCell) used fortransmission of control signals also have different functions from CA.In the CA, only a part of the functions of PCell is supported in theSCell. Specifically, the SCell does not support the physical uplinkcontrol channel (PUCCH), the contention based random access (CBRA), andthe like, and the PCell basically performs transmission of hybridautomatic retransmission (HARQ) response signal and the uplink controlinformation (UCI) as quality information of downlink (DL), an uplinkscheduling request to the base transceiver station, and the like.

On the other hand, in the DC, the delay between the base transceiverstations MNB/SNB that bundle the carriers is large. Thus, the UCI andthe scheduling request received by the PCell of the MNB are notified tothe SNB in real time through the backhaul, and it is difficult toreflect the UCI and the scheduling request on the scheduling of thesubordinate SCell.

Therefore, in DC, for example, as shown in FIG. 28, one carriersubordinate to the SNB is used as a primary SCell (PSCell) to supportPUCCH transmission and CBRA in addition to the PCell, and the UCI andthe scheduling request for each carrier subordinate to the SNB aretransmitted directly from the user equipment UE to the SNB. Thereby,communication with a plurality of base transceiver stations can berealized without being affected by the delay between the MNB and theSNB. It should be noted that the PSCell also has a function that waspreviously supported only by the PCell, such as a downlink radio qualitymonitoring function. Therefore, the user equipment UE is able to performstable transmission and reception with the SNB.

In the non-standalone NR operation equipped with the DC technologydescribed with reference to FIGS. 24 to 28, in addition to “high speedand large capacity” in LTE/LTE-Advanced, advantages of “low delay andhigh reliability” can also be achieved.

For this reason, it is desired for a measurement device, which measuresa terminal that performs communication according to the NR standardthrough the non-standalone NR operation, to have a display controlfunction of drawing a cell (base transceiver station) image fordetecting base transceiver stations in both NR and LTE areas which areset to perform simulative communication with the terminal and a carrierimage for detecting the status of use of a carrier.

For an device for testing a communication operation of a mobilecommunication terminal by simulating a base transceiver station thattransmits and receives signals based on various communication standardsincluding LTE, for example, Patent Document 1 proposes a technology ofperforming display for detecting the contents of setting of multiplexcommunication and the status of the multiplex communication under testincluding information indicating a subordinate relationship of multiplexcommunication.

For example, the display control unit 5 described in Patent Document 1controls the display unit 6 to perform, for example, a desired displayin the display form shown in FIG. 29 in accordance with a control signalfrom the pseudo base transceiver station control unit 4 based on thesetting information.

The display unit 6 is configured as a display such as a liquid crystalpanel, and has a multiplex-communication-related display unit 6 d inaddition to the sequence display unit 6 a, the connection status displayunit 6 b, and the connection destination display unit 6 c.

For packet data communication for each service between the terminal 11(for example, a mobile communication terminal such as a 4G terminal) andthe virtual connection destination 12 through the measurement device 1,the sequence display unit 6 a displays a plurality of sequencesindicating a communication procedure and a transition status ofcommunication between the terminal 11 and the virtual connectiondestination 12.

Specifically, as shown in FIG. 29, the sequence display unit 6 adisplays, as a plurality of sequences, a “Power Off” sequence indicatingthe power-off status of the terminal 11, a “Detach (positionregistration release)” sequence indicating a position registrationrelease status of the terminal 11, a “Registration (positionregistration)” sequence indicating a position registration status of theterminal 11, an “Idle (standby status)” sequence indicating a standbystatus of the terminal 11, an “Origination (outgoing)” sequenceindicating an outgoing status of the terminal 11, a “Termination(incoming)” sequence indicating an incoming status of the terminal 11, a“Communication (communication status)” sequence indicating acommunication status of the terminal 11, a “UE (user equipment) Release(terminal disconnection)” sequence indicating a disconnection statusfrom the terminal 11, and a “NW (network) Release (connectiondestination disconnection)” sequence indicating a disconnection statusfrom virtual connection destination 12.

Under the control of the display control unit 5, these series ofsequences are displayed in a flowchart form with arrows indicating eachcommunication procedure and the transition direction of thecommunication status between the sequences. At that time, the displaystatus changes in accordance with the transition status. That is, in acase where the corresponding sequence is in the transition status, thecorresponding sequence is displayed in a display status different fromthe previous display status, for example, by changing the display coloror the display luminance.

In FIG. 29, the arrows between the sequences in the sequence displayunit 6 a indicate the communication procedures and the transitiondirections of the communication status.

The connection status display unit 6 b displays the connection statusbetween the terminal 11 and the virtual connection destination 12 (avirtual call destination 12 a, a virtual server 12 b, or a virtualvideophone 12 c) through the measurement device 1.

More specifically, the connection status display unit 6 b displays, asgraphic icons, the terminal 11, the pseudo base transceiver stationcontrol unit 4, and the virtual connection destination 12 (the virtualcall destination 12 a, the virtual server 12 b, or the virtualvideophone 12 c) under the control of the display control unit 5,changes the display status in accordance with the presence or absence ofconnection, and graphically displays a plurality of connection linesbetween the terminal 11 for the pseudo base transceiver station controlunit 4 and each of the virtual connection destination 12 (the virtualcall destination 12 a, the virtual server 12 b, or the virtualvideophone 12 c). That is, the display color of the correspondingconnection line is changed or the display luminance is changed inaccordance with the presence or absence of the connection.

The connection destination display unit 6 c graphically displays onevirtual connection destination 12 (any of the virtual call destination12 a, the virtual server 12 b, or the virtual videophone 12 c) to whichthe terminal 11 is connected through the pseudo base transceiver stationcontrol unit 4.

in a case where the terminal 11 performs the multiplex communication,under the control of the display control unit 5 through the pseudo basetransceiver station control unit 4, the multiplex-communication-relateddisplay unit 6 d displays the above-mentioned Priority, Status,PDN/PDP-Type, IP-version, QCI, EBI/NSAPI, Linked-EBI/Linked-NSAPI,UE-Address, DNS-Address, and Access-Point-Name as themultiplex-communication-related information, for example in a listformat as shown in FIG. 29. The multiplex-communication-relatedinformation is determined by the display information determination unit13 in order to detect the setting contents of the multiplexcommunication and the status of the multiplex communication under test.

Conventionally, the simulation model setting screen for setting asimulation model is displayed with a screen configuration as shown inFIG. 30. The conventional simulation model parameter setting screen 331shown in FIG. 30 has a simulation model area 331 a and a simulationmodel display area 331 b.

In the operation of the conventional test apparatus having the aboveconfiguration, for example, it is necessary to set the simulationparameters for the set NR and LTE cells after setting the number of basetransceiver stations for the radio access technology (RAT) (the numberof RAT cells: NR and LTE cells) by using the simulation model settingscreen 331 (refer to FIG. 30).

In order to set simulation parameters, conventionally, as shown in FIG.31, a simulation parameter setting screen 33 m 4 is displayed in, forexample, the connection status display area 33 m 2 of the main screen 33m. The main screen 33 m includes a simulation parameter display screen33 m 4, a sequence display area 33 m 1, a connection status display area33 m 2, and a sequence log display area 33 m 3, where base transceiverstation identification tabs 40 a, 40 b, 40 c, 40 d, and 40 e(hereinafter, may be collectively referred to as base transceiverstation identification tabs 40) corresponding to a base transceiverstation for NR or LTE are provided vertically at a required position onthe right end of the screen.

By selecting one of the plurality of base transceiver stationidentification tabs 40, a simulation parameter setting screen 33 m 4relating to the base transceiver stations (NR and LTE cells) for thecommunication standard corresponding to the selected base transceiverstation identification tab 40 is displayed on the main screen 33 mhaving the above-mentioned configuration. FIG. 31 shows a displayexample of the simulation parameter setting screen 33 m 4 in a casewhere the base transceiver station identification tab 40 of “NR1” isselected. Similarly, also in a case where the base transceiver stationidentification tabs 40 of “NR2”, “LTE1”, “LTE2”, and “LTE3” areselected, the simulation parameter setting screen 33 m 4 relating to thebase transceiver stations for the communication standard correspondingto the selected base transceiver station identification tab 40 isdisplayed.

In the conventional display mode of the simulation parameter settingscreen 33 m 4, only one simulation parameter setting screen 33 m 4 ofone base transceiver station can be displayed in the connection statusdisplay area 33 m 2 of the main screen 33 m, and it is not possible toproceed with setting of simulation parameters while confirming thesetting status of another base transceiver station for the samestandard.

Further, as a tool for confirming the connection parameters in a casewhere the base transceiver station is connected to the mobilecommunication terminal after setting the simulation parameters,conventionally, as shown in FIG. 32, for example, at the top of theconnection status display area 33 m 2 of the main screen 33 m, operationtoolbars 48 a, 48 b, 48 c, 48 d, and 48 e (hereinafter may becollectively referred to as operation toolbars 48) respectivelycorresponding to base transceiver stations of which the simulationparameters have been set, that is, the base transceiver stationidentification tabs 40 are displayed.

While the main screen 33 m is being displayed, the user may select theoperation toolbar 48 corresponding to the desired base transceiverstation to confirm the connection parameters. In such a manner, as shownin FIG. 33, the connection parameter display area 49 corresponding tothe base transceiver station selected by the operation toolbar 48 isdisplayed, and the connection parameter for connection with the mobilecommunication terminal in the base transceiver station is displayed asan image in the connection parameter display area 49. In particular, inFIG. 33, three operation toolbars 48 a, 48 b, and 48 c respectivelycorresponding to the base transceiver stations NR1, NR2, and LTE1 areselected in order, and three connection parameter display areas 49 (49a, 49 b, 49 c) corresponding to the base transceiver stations NR1, NR2,and LTE1 are displayed in multiple stages, in the selected order.

RELATED ART DOCUMENT Non-Patent Document

-   [Non-Patent Document 1] Uchino, Teshima, Takeda {NTT DOCOMO    Technical Journal} Vol. 23 No. 2 pp. 35-45 (July 2015)-   [Non-patent Document 2] Minoguchi, Isobe, Takahashi, Nagata {NTT    DOCOMO Technical Journal} Vol. 25 No. 3 pp. 6-12 (October 2017)

Patent Document

-   [Patent Document 1] U.S. Pat. No. 5,290,359 (Japanese Patent    Application Laid-Open No. 2013-9254)

DISCLOSURE OF THE INVENTION Problem that the Invention is to Solve

Thus, conventionally, the main screen having the same number of basetransceiver station identification tabs 40 as the number of basetransceiver stations is displayed, and the simulation parameter settingscreen 33 m 4 of the base transceiver station corresponding to theselected base transceiver station identification tab 40 is displayed.Therefore, it is difficult to proceed with setting while viewing thesetting status of the simulation parameters of multiple base transceiverstations, that is, viewing the whole.

In addition, in this type of measurement device, it is expected that thenumber of base transceiver stations will increase in the future in boththe old and new communication standards (NR and LTE) with respect to theprogress of non-standalone NR operation. Under such circumstances, inthe conventional method of displaying the simulation parameter displayarea, there is a problem in that it is more and more difficult to setthe simulation parameters from the perspective of the whole whileconsidering the setting status of base transceiver stations for the samecommunication standard.

The present invention has been made in order to solve the problems inthe conventional simulation parameter display area. It is an object ofthe present invention to provide a communication terminal measurementsystem, a communication terminal measurement apparatus, and ameasurement-related information display method capable of displaying anoperation screen that is comfortable to view and has favorableoperability in order to perform setting of the simulation parameterseven in a case where the number of base transceiver stations compliantwith the old and new communication standards increases.

Means for Solving the Problem

In order to solve the above problems, a communication terminalmeasurement system of the present invention is configured to include: acommunication terminal measurement apparatus (20) that is compliant witha first communication standard of mobile communication; a communicationterminal measurement apparatus (21) that is compliant with a secondcommunication standard of mobile communication; a control device (22)that has a control unit (31) controlling the communication terminalmeasurement apparatus compliant with the first communication standardand the communication terminal measurement apparatus compliant with thesecond communication standard, and a display unit (6 e, 33) displayingcontrol contents of the control unit. A mobile communication terminal(11 a) is tested by simulating three or more base transceiver stationseach of which is compliant with the first communication standard or thesecond communication standard. The display unit includes tabs (41 a, 41b) for identifying the first communication standard or the secondcommunication standard, a first simulation parameter display area (33 c1) in which simulation parameters of respective base transceiverstations compliant with the first communication standard are displayedin array for each base transceiver station, and a second simulationparameter display area (33 c 2) in which simulation parameters ofrespective base transceiver stations compliant with the secondcommunication standard are displayed in array for each base transceiverstation. The control unit performs control such that the firstsimulation parameter display area or the second simulation parameterdisplay area is displayed in a case of receiving selection of either thefirst communication standard or the second communication standard on thetabs.

With such a configuration, the communication terminal measurement systemof the present invention is able to display a list of simulationparameters of base transceiver stations compliant with the firstcommunication standard or the second communication standard. Thereby, itis easy to understand the simulation parameter information of aplurality of base transceiver stations corresponding to eachcommunication standard. As a result, even in a case where the number ofbase transceiver stations increases, it is possible to efficiently setthe simulation parameters while viewing the overall situation for eachcommunication standard, and to easily confirm the settings. In addition,the simulation parameters can be set and the settings can be confirmedusing two types of tabs. Thus, it is possible to make a screenconfiguration, which is simpler, easier to view, and has betteroperability than that of the conventional system that requires thenumber of tabs corresponding to the number of base transceiver stations.

The communication terminal measurement system according to anotheraspect of the present invention may be configured such that the displayunit further includes a base transceiver station selection toolbar (45)in which base transceiver station selection tabs (46) for individuallyselecting base transceiver stations each of which is compliant with thefirst communication standard or the second communication standard arearranged in a line; and a display command toolbar (47) which is disposedadjacent to the base transceiver station selection toolbar, and after abase transceiver station for the first communication standard or a basetransceiver station for the second communication standard is selected bythe base transceiver station selection tab, the control unit displays aconnection parameter of connection between any one of the selected basetransceiver stations and the mobile communication terminal in accordancewith a selection operation of the display command toolbar.

With such a configuration, in the communication terminal measurementsystem according to another aspect of the present invention, it ispossible to make a screen, which is for displaying connection parametersof a base transceiver station having a desired communication standardand a base transceiver station number, have a simple configurationincluding two toolbars of a base transceiver station selection toolbar,and a display command toolbar and displaying only the connectionparameters of the base transceiver station selected by the basetransceiver station selection toolbar. Thereby, it is possible toprevent the screen from being covered with toolbars and being difficultto view, as in a conventional system having the number of toolbarscorresponding to the number of base transceiver stations and displayingconnection parameters of a plurality of base transceiver stations. As aresult, it is possible to make the operation of confirming theconnection parameters easy.

The communication terminal measurement system according to anotheraspect of the present invention may be configured such that the displayunit further includes a main screen (33 a) which includes a connectionstatus display area (33 a 2) and in which the base transceiver stationselection toolbar and the display command toolbar are arranged and inwhich the tab is provided, and the control unit displays the firstsimulation parameter display area or the second simulation parameterdisplay area in the connection status display area, in a case ofreceiving the selection of the tab.

With such a configuration, the communication terminal measurement systemaccording to another aspect of the present invention is able to ensurean area for setting simulation parameters for the first communicationstandard or the second communication standard on the connection statusdisplay area of the main screen in accordance with the selection of thetab. Thus, simulation parameters of each communication standard can beset and settings can be promptly confirmed.

The communication terminal measurement system according to anotheraspect of the present invention may be configured such that, in a casewhere the control unit receives the selection of the tab and thenfurther receives a predetermined non-display selection operation, thecontrol unit hides the first simulation parameter display area or thesecond simulation parameter display area being displayed.

With such a configuration, the communication terminal measurement systemaccording to another aspect of the present invention is able to promptlyaccess the functions of the main screen while improving the performancewhile improving operability relating to the simulation parameter settingand setting confirmation by displaying the first simulation parameterdisplay area or the second simulation parameter display area.

The communication terminal measurement system according to anotheraspect of the present invention may be configured such that the firstcommunication standard is any one of NR or LTE, and the secondcommunication standard is the other one of NR or LTE.

With such a configuration, in the communication terminal measurementsystem according to another aspect of the present invention, it ispossible to efficiently set simulation parameters while viewing theoverall situation for each NR and LTE communication standard, even in acase where either the number of NR base transceiver stations or thenumber of LTE base transceiver stations increases. In addition, usingonly two types of tabs, it is possible to perform a smooth transition tothe work of setting simulation parameters relating to NR and LTE andconfirming the settings.

Further, the communication terminal measurement apparatus of the presentinvention has a configuration corresponding to either the firstcommunication standard or the second communication standard, which isused in the communication terminal measurement system of any one of theaspects described above.

With such a configuration, in the communication terminal measurementapparatus according to the present invention, even in a case where thenumber of base transceiver stations compliant with the firstcommunication standard or the second communication standard increases,the communication terminal measurement system according to any of theabove-mentioned aspects is able to efficiently carry out the test of themobile communication terminal corresponding to either the firstcommunication standard or the second communication standard inaccordance with the fact that the simulation parameters can beefficiently set while viewing the overall situation for eachcommunication standard and the setting can be easily confirmed. Inaddition, the communication terminal measurement apparatus of thepresent invention allows the communication terminal measurement systemaccording to any one of the above-described aspects to be able to setthe simulation parameter and confirm the setting by using two types oftabs, and to smoothly carry out tests of mobile communication terminalscompliant with either the first communication standard or the secondcommunication standard in accordance with a screen configuration whichis simple, is comfortable to view, and has favorable operability, ascompared with the conventional system.

A communication terminal measurement apparatus according to anotheraspect of the present invention tests a mobile communication terminal(11 a) by simulating three or more base transceiver stations each ofwhich is compliant with a first communication standard or a secondcommunication standard. The communication terminal measurement apparatusincludes: a control unit (31) that controls the communication terminalmeasurement apparatus; and a display unit (6 e, 33) that displayscontrol contents of the control unit. The display unit includes tabs (41a, 41 b) for identifying the first communication standard or the secondcommunication standard, a first simulation parameter display area (33 c1) in which simulation parameters of each of the base transceiverstations compliant with the first communication standard are displayedin array for each base transceiver station, and a second simulationparameter display area (33 c 2) in which simulation parameters of eachof the base transceiver stations compliant with the second communicationstandard are displayed in array for each base transceiver station, andthe control unit performs control such that in a case of receivingselection of either the first communication standard or the secondcommunication standard on the tab, the first simulation parameterdisplay area or the second simulation parameter display area isdisplayed in accordance with the tab for identifying the selectedcommunication standard.

With such a configuration, the communication terminal measurementapparatus according to another aspect of the present invention is ableto display a list of simulation parameters of base transceiver stationscompliant with the first communication standard or the secondcommunication standard through the display control of the control unit.Thereby, it is easy to understand the simulation parameter informationof a plurality of base transceiver stations corresponding to eachcommunication standard. As a result, even in a case where the number ofbase transceiver stations increases, it is possible to efficiently setthe simulation parameters while viewing the overall situation for eachcommunication standard, and to easily confirm the settings. In addition,the simulation parameters can be set and the settings can be confirmedusing two types of tabs. Thus, it is possible to make a screenconfiguration, which is simpler, easier to view, and has betteroperability than that of the conventional system that requires thenumber of tabs corresponding to the number of base transceiver stations.

A communication terminal measurement apparatus according to anotheraspect of the present invention tests a mobile communication terminal(11 a) by simulating three or more base transceiver stations each ofwhich is compliant with a first communication standard or a secondcommunication standard. The communication terminal measurement apparatusis controlled by a control device including: a control unit (31) thatcontrols the communication terminal measurement apparatus; and a displayunit (6 e, 33) that displays control contents of the control unit. Thedisplay unit includes tabs (41 a, 41 b) for identifying the firstcommunication standard or the second communication standard, a firstsimulation parameter display area (33 c 1) in which simulationparameters of each of the base transceiver stations compliant with thefirst communication standard are displayed in array for each basetransceiver station, and a second simulation parameter display area (33c 2) in which simulation parameters of each of the base transceiverstations compliant with the second communication standard are displayedin array for each base transceiver station, and the control unitperforms control such that in a case of receiving selection of eitherthe first communication standard or the second communication standard onthe tab, the first simulation parameter display area or the secondsimulation parameter display area is displayed in accordance with thetab for identifying the selected communication standard.

With such a configuration, the communication terminal measurementapparatus according to another aspect of the present invention is ableto display a list of simulation parameters of base transceiver stationscompliant with the first communication standard or the secondcommunication standard through the display control in the control unitof the control device. Thereby, it is easy to understand the simulationparameter information of a plurality of base transceiver stationscorresponding to each communication standard. As a result, even in acase where the number of base transceiver stations increases, it ispossible to efficiently set the simulation parameters while viewing theoverall situation for each communication standard, and to easily confirmthe settings. In addition, the simulation parameters can be set and thesettings can be confirmed using two types of tabs. Thus, it is possibleto make a screen configuration, which is simpler, easier to view, andhas better operability than that of the conventional system thatrequires the number of tabs corresponding to the number of basetransceiver stations.

Further, a measurement-related information display method of the presentinvention simulates three or more base transceiver stations each ofwhich is compliant with a first communication standard or a secondcommunication standard and displaying measurement-related informationrelating to measurement of a mobile communication terminal (11 a). Themethod includes: a step of displaying a main screen (33 a) having tabs(41 a, 41 b) for identifying the first communication standard or thesecond communication standard (S31); a step of receiving a selection ofeither the first communication standard or the second communicationstandard on the tab (S36 a); and a step of performing control todisplay, on the main screen, a first simulation parameter display area,in which simulation parameters of each of the base transceiver stationscompliant with the first communication standard are displayed in arrayfor each base transceiver station, or a second simulation parameterdisplay area, in which the simulation parameters of each of the basetransceiver stations compliant with the second communication standardare displayed in array for each base transceiver station, in accordancewith the tab for identifying the selected communication standard (S36 b,S36 c, S36 d).

With such a configuration, in the measurement-related informationdisplay method of the present invention, a list of simulation parametersof base transceiver stations compliant with the first communicationstandard or the second communication standard is displayed, and thesimulation parameters can be efficiently set while the overall situationis viewed for each communication standard even in a case where thenumber of base transceiver stations increases. As a result, it ispossible to display an operation screen which is easy to confirmsetting, is simple, is comfortable to view, and has favorableoperability.

Advantage of the Invention

The present invention is able to provide a communication terminalmeasurement system, a communication terminal measurement apparatus, anda measurement-related information display method capable of displayingan operation screen that is comfortable to view and has favorableoperability in order to perform setting of simulation parameters andconfirm the setting even in a case where the number of base transceiverstations compliant with old and new communication standards increases.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram showing a configuration of a measurementdevice according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an example of a display processingprocedure in a case where a measurement device according to anembodiment of the present invention performs transmission.

FIG. 3 is a flowchart showing an example of a display processingprocedure in a case where a mobile communication terminal as ameasurement target by the measurement device according to an embodimentof the present invention performs transmission.

FIG. 4 is a block diagram showing a connection configuration of ameasurement device according to an embodiment of the present inventionas a communication terminal measurement system.

FIG. 5 is a block diagram showing a functional configuration of acontrol device in FIG. 4.

FIG. 6 is a flowchart showing an example of a display processingprocedure in a terminal measurement parameter setting stage of themeasurement device according to an embodiment of the present invention.

FIG. 7 is a flowchart showing details of a simulation parameter settingprocessing in S36 of FIG. 6.

FIG. 8 is a flowchart showing an example of a display processingprocedure in a terminal execution of the measurement stage of themeasurement device according to an embodiment of the present invention.

FIG. 9 is a diagram showing a display example of a main screen used formeasurement of a terminal of the measurement device according to anembodiment of the present invention.

FIG. 10 is a diagram showing a display example of a main screen ofanother example used for measurement of a terminal of the measurementdevice according to an embodiment of the present invention.

FIG. 11 is a diagram showing a screen configuration of a main screen ina case where the simulation parameter setting screen is hidden on themain screen in FIG. 9.

FIG. 12 is a diagram showing a screen configuration of a main screen ina case where the simulation parameter setting screen is hidden on themain screen in FIG. 10.

FIG. 13 is a diagram showing a display example of a simulation modelsetting screen used for measurement of a terminal of the measurementdevice according to an embodiment of the present invention.

FIG. 14 is an enlarged view showing a RAT cell number setting area ofthe simulation model setting screen in FIG. 13.

FIG. 15 is an enlarged view showing a simulation model display area ofthe simulation model setting screen in FIG. 13.

FIG. 16 is a diagram showing a display example of a connectionconfirmation/support request screen used for measurement of a terminalof the measurement device according to an embodiment of the presentinvention.

FIG. 17 is a diagram showing a display example of a DC operationconfirmation screen used for measurement of a terminal of themeasurement device according to an embodiment of the present invention.

FIG. 18 is a diagram showing a display example of another example of aDC operation confirmation screen used for measurement of a terminal ofthe measurement device according to an embodiment of the presentinvention.

FIG. 19 is a diagram showing a display example of a test caseconfirmation screen used for measurement of a terminal of themeasurement device according to an embodiment of the present invention.

FIG. 20 is a diagram showing a display example of a componentconfirmation screen used for measurement of a terminal of themeasurement device according to an embodiment of the present invention.

FIG. 21 is a diagram showing a display example of another example of acomponent confirmation screen used for measurement of a terminal of themeasurement device according to an embodiment of the present invention.

FIG. 22 is a diagram showing a display example of a power characteristicconfirmation screen used for measurement of a terminal of themeasurement device according to an embodiment of the present invention.

FIG. 23 is a diagram showing a display example of a throughputconfirmation screen used for measurement of a terminal of themeasurement device according to an embodiment of the present invention.

FIG. 24 is a schematic diagram of a conventional technique showing anoperation image of a non-standalone 5G wireless in which a communicationterminal as a measurement target by the measurement device according toan embodiment of the present invention is disposed.

FIG. 25 is a schematic diagram of a related art showing a networkconfiguration relating to DC of non-standalone 5G wireless.

FIG. 26 is a sequence diagram of a related art showing a basetransceiver station addition procedure in DC of non-standalone 5Gwireless.

FIG. 27 is a diagram showing a conventional protocol stack in DC ofnon-standalone 5G wireless.

FIG. 28 is a schematic diagram showing a configuration of a conventionalcell group in a non-standalone 5G wireless DC.

FIG. 29 is a prior art diagram showing a display example ofmeasurement-related information of the measurement device according toan embodiment of the present invention.

FIG. 30 is a diagram showing a display example of a simulation modelsetting screen having a RAT cell number setting area and a simulationmodel display area in a conventional measurement device.

FIG. 31 is a diagram showing a display example of a simulation parametersetting screen on a main screen of a conventional measurement device.

FIG. 32 is a diagram showing a display example of an operation toolbarfor displaying connection parameters on the main screen of theconventional measurement device.

FIG. 33 is a diagram showing a display example of a connection parameterdisplay area according to a selection operation of the operation toolbaron the main screen shown in FIG. 32.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of a communication terminal measurementsystem, a communication terminal measurement apparatus, and ameasurement-related information display method according to the presentinvention will be described with reference to the drawings.

A communication terminal measurement system and a communication terminalmeasurement apparatus according to the present invention transmit andreceive a signal (RF signal) based on a predetermined communicationstandard (for example, LTE or NR) with a newly developed mobilecommunication terminal such as a mobile phone. Thereby, thecommunication operation of the mobile communication terminal is testedby simulating a base transceiver station.

In particular, the communication terminal measurement system and thecommunication terminal measurement apparatus according to the presentinvention can also support the measurement of a terminal performingcommunication according to the above-mentioned NR communicationstandard, and has a function of simulating NR base transceiver stationsand LTE base transceiver stations arranged in each area of NR and LTE ina non-standalone NR network. The NR communication standard and the LTEcommunication standard correspond to the first communication standardand the second communication standard of the present invention,respectively.

The communication terminal measurement system and the communicationterminal measurement apparatus according to the present inventioninclude: a display function for detecting the setting contents of themultiplex communication and the status of the multiplex communicationunder test, including information indicating the subordinaterelationship of the multiplex communication; a measurement function ofthe user equipment UE (terminal) provided for the non-standalone NRoperation; and a display function for displaying measurement-relatedinformation relating to the measurement.

As shown in FIG. 1, the measurement device 1A according to oneembodiment of the present invention is schematically configured toinclude, as components for realizing the measurement function and thedisplay function, an operation unit 2, a transmitting/receiving unit 3,a pseudo base transceiver station control unit 4, a display control unit5, and a display unit 6. Hereinafter, each component will be described.The measurement device 1A constitutes the communication terminalmeasurement apparatus of the present invention.

The operation unit 2 includes an operation panel such as switches andbuttons provided on the front surface of the housing of the measurementdevice 1A, for example. The operation unit selectively performs aninstruction to start or stop a communication operation test of a mobilecommunication terminal (hereinafter, abbreviated as a terminal) 11 a tobe tested, and various settings necessary for a communication operationtest of the terminal 11 a including various kinds of informationsettings necessary for performing a desired display on a display unit 6(a sequence display unit 6 a, a connection status display unit 6 b, aconnection destination display unit 6 c, and amultiplex-communication-related display unit 6 d to be described later).The terminal 11 a described in the present embodiment is a 5G terminal,and is compliant with 5GNR, LTE, and pre-LTE communication standards.

Under the control of the pseudo base transceiver station control unit 4,the transmitting/receiving unit 3 transmits a signal (RF signal) of theNR communication standard, the LTE communication standard, or thepre-LTE communication standard from a virtual connection destination 12to the terminal 11 a as a test target, and inputs the signal (RF signal)of the NR communication standard, the LTE communication standard, or thepre-LTE communication standard received from the terminal 11 a to thevirtual connection destination 12. The transmitting/receiving unit 3 hasa function of appropriately transmitting and receiving signalsconforming to the NR communication standard, the LTE communicationstandard, and the pre-LTE communication standard between the pseudo basetransceiver station and the terminal 11 a.

The virtual connection destination 12 is a destination that isincorporated in the measurement device 1A and can be connected to theterminal 11 a under the control of the pseudo base transceiver stationcontrol unit 4, and corresponds to a virtual call destination 12 a, avirtual server 12 b, a virtual videophone 12 c, a virtual NR network 12d, and the like as shown in FIG. 1.

The pseudo base transceiver station control unit 4 collectively controlseach unit of the transmitting/receiving unit 3, the display control unit5, and the display unit 6 based on the operation information of theoperation unit 2 so as to execute a predetermined scenario and perform acommunication operation test of the terminal 11 a.

It should be noted that the scenario describes a test procedure of aseries of operations for simulating a communication sequence based on apredetermined communication standard (for example, LTE standard, NRstandard, or the like) in the measurement device 1A that simulates abase transceiver station. In the measurement device 1A according to thepresent embodiment, a description is also given of, as theabove-described scenario, a test procedure of a series of operations forsimulating a communication sequence based on the NR communicationstandard between each base transceiver station in the LTE and NR areasin the network relating to the non-standalone NR operation and theterminal 11 a that is the measurement target terminal. That is, thevirtual NR network 12 d, which is one of the virtual connectiondestinations 12, has a functional configuration for simulatingcommunication with the terminal 11 a based on the NR communicationstandard.

In addition, in a case where the terminal 11 a performs multiplexcommunication, the pseudo base transceiver station control unit 4 has adisplay information determination unit 13 that determines various typesof display information to be displayed on themultiplex-communication-related display unit 6 d to be described lateron the basis of operation information (including setting information)from the operation unit 2 and notification information from the terminal11 a.

More specifically, as shown in FIG. 1, the display informationdetermination unit 13 includes a Priority determination unit 13 a, aStatus determination unit 13 b, a PDN/PDP-Type determination unit 13 c,an internet protocol (IP)-version determination unit 13 d, a QCIdetermination unit 13 e, an EPS bearer identifier (EBI)/network serviceaccess point identifier (NSAPI) determination unit 13 f, aLinked-EBI/Linked-NSAPI determination unit 13 g, a UE-Addressdetermination unit 13 h, a domain name system (DNS)-Addressdetermination unit 13 i, an Access-Point-Name determination unit 13 j,and an NR measurement-related information determination unit 13 k.

The pre-LTE, LTE, and NR systems share the Priority determination unit13 a, the Status determination unit 13 b, the PDN/PDP-Type determinationunit 13 c, the internet protocol (IP)-version determination unit 13 d,the QCI determination unit 13 e, the EPS bearer identifier (EBI)/networkservice access point identifier (NSAPI) determination unit 13 f, theLinked-EBI/Linked-NSAPI determination unit 13 g, the UE-Addressdetermination unit 13 h, the domain name system (DNS)-Addressdetermination unit 13 i, and the Access-Point-Name determination unit 13j. The NR measurement-related information determination unit 13 kprocesses only NR information.

The Priority determination unit 13 a determines Priority, which is anumber for distinguishing a packet data network (PDN) or a packet dataprotocol (PDP), inside the measurement device LA. In a case where theterminal 11 a performs transmission, the measurement device 1Aautomatically adds the priority in response to the call from theterminal 11 a. In addition, in a case where the measurement device 1Aperforms transmission, a tester operates the operation unit 2 to performthe setting in advance.

The PDN or PDP is a logical connection through packet data communicationfor each service between the terminal (hereinafter, also referred to asUE) 11 and the virtual connection destination 12 through a packet datacommunication network, and the logical connection is referred to as PDNin LTE and referred to as PDP in GSM (registered trademark)/W-CDMA.

The multi-PDP (multi-PDN) means a plurality of PDPs (PDNs), that is,multiple connections, and is roughly classified into two types of (A)and (B) shown below, and the two types may be mixed.

(A) PDPs based on completely different services are multiplexed. In thiscase, each communication destination has a different IP address, and theUE has multiple connections with communication destinations havingdifferent IP addresses. Each PDP-Type is Primary (default in LTE). Inaddition, one UE may perform a plurality of communications using aplurality of IP addresses in addition to a communication destination.Also in this case, the UE is multi-PDPs.

(B) PDPs based on mutually related services are multiplexed. Forexample, in a case where voice data is communicated using voice overinternet protocol (VoIP), the UE exchanges control information (login,incoming call notification, and the like) with a session initiationprotocol (SIP) server, and also exchanges voice data. In this case, thecontrol information and the voice data are different PDPs, and aremulti-PDPs. Here, in each PDP-Type, the control information is Primary(Default in LTE), and the voice data is secondary (Dedicated in LTE).

It should be noted that the VoIP is a technology for compressing voiceby various encoding methods, converting the voice into packets, andtransmitting the packets in real time through an IP network. Since LTEis a packet-switched communication system, a telephone call is performedby the VoIP.

The SIP is a session control protocol for performing operations such asstarting, changing, and ending a session in two-way real-timecommunication such as a telephone or a videophone. The SIP server usedfor VoIP performs relay of communication between UEs.

The Status determination unit 13 b determines Status indicating aconnection status. In the connection destination display unit 6 c to bedescribed later, the connection status (the status where PDN or PDP isregistered) and the disconnection status (the status of PDN or PDP) arecontrolled by the display control unit 5 based on the Status determinedby the Status determination unit 13 b. As shown in FIG. 29, the twostatuses (unregistered status) are distinguished and displayed bycorresponding icons. The display is automatically switched by themeasurement device 1A determining the status.

Here, the connection status is a status where an IP address is assigned,and the disconnection status is a status where an IP address is notassigned. Simply not communicating is not defined as a disconnectionstatus. In the actual operation, even in a case where the wirelesscommunication is cut off momentarily after entering the tunnel duringthe communication, the PDP registration is maintained, and thecommunication is resumed in a case where the wireless communication isrestored. The disconnection status may occur due to spontaneousdisconnection processing or a long timeout.

The PDN/PDP-Type determination unit 13 c determines a PDN-Typeindicating the type of PDN and a PDP-Type indicating the type of PDP.

There are two types of PDN-Type: Default and Dedicated, and two types ofPDP-Type: Primary and secondary.

Further, taking PDP-Type as an example, Primary is a PDP having an IPaddress, that is, a parent PDP. A plurality of Primary PDPs can exist.

The secondary is a PDP having no IP address, that is, a child PDP. ThePrimary PDP can exist alone, whereas the secondary PDP is subordinate tothe Primary PDP. A plurality of secondary PDPs can be subordinate to onePrimary PDP. In PDN-Type, Default corresponds to Primary and Dedicatedcorresponds to secondary.

The PDN/PDP-Type determination unit 13 c differs in the method ofdetermining the value of PDN-Type or PDP-Type depending on whether thecommunication standard is LTE or GSM/W-CDMA.

That is, in a case where the communication standard is LTE and theterminal 11 a performs transmission, the terminal 11 a determines andnotifies the PDN-Type, and the PDN/PDP-Type determination unit 13 coutputs the information to the display control unit 5. In a case wherethe communication standard is LTE and the measurement device 1A performstransmission, the tester operates the operation unit 2 to set thePDN-Type in advance through the PDN/PDP-Type determination unit 13 c. Itshould be noted that the PDN-Type can also be automatically set by themeasurement device 1A.

In a case where the communication standard is GSM/W-CDMA and theterminal 11 a performs transmission, the terminal 11 a determines andnotifies the PDP-Type, and the PDN/PDP-Type determination unit 13 coutputs the information to the display control unit 5. Further, in acase where the communication standard is GSM/W-CDMA and the measurementdevice 1A performs transmission, the PDN/PDP-Type determination unit 13c responds to the notification of the Access-Point-Name from themeasurement device 1A, the terminal 11 a notifies the PDP-Type and theNSAPI, and makes the determination on the basis of the information.

Then, in the multiplex-communication-related display unit 6 d, whichwill be described later, under the control of the display control unit 5based on the PDN-Type or PDP-Type determined by the PDN/PDP-Typedetermination unit 13 c, for example, Default (Primary) or Dedicated(secondary) is displayed in a display form shown in FIG. 29, forexample.

The IP-version determination unit 13 d determines an IP-versionindicating the type of the IP. More specifically, in a case where theterminal 11 a performs transmission, the terminal 11 a determines andnotifies the IP-version, and the IP-version determination unit 13 doutputs the information to the display control unit 5. On the otherhand, in a case where the measurement device 1A performs transmission,the tester operates the operation unit 2 to set the IP-version inadvance. It should be noted that the measurement device 1A canautomatically set the IP-version.

Then, in the multiplex-communication-related display unit 6 d, whichwill be described later, under the control of the display control unit 5based on the IP-version determined by the IP-version determination unit13 d, for example, any one of IPv4, IPv6, and IPv4v6 in the display formshown in FIG. 29 is displayed.

It should be noted that IPv4v6 means dual stack. The dual stack is atechnology that uses IPv4 and IPv6 coexistently, and one measurementdevice 1A can have both IPv4 and IPv6 addresses and mix both protocols.

The QCI determination unit 13 e determines a QCI that is anidentification code indicating a class of a service associated with theservice contents. This QCI is determined by the pseudo base transceiverstation control unit 4 of the measurement device 1A. Therefore, thetester operates the operation unit 2 to perform the setting in advancein both a case where the terminal 11 a performs transmission and a casewhere the measurement device 1A performs transmission. It should benoted that the measurement device 1A can automatically set the QCI.

The EBI/NSAPI determination unit 13 f determines NSAPI, which is basicinformation for identifying the PDN and EBI, which is basic informationfor identifying the PDP, on the basis of the ID allocated to the PDN orPDP. EBI/NSAPI is referred to as EBI in LTE and NSAPI in GSM/W-CDMA.

The EBI/NSAPI determination unit 13 f differs in the method ofdetermining the value depending on whether the communication standard isLTE or GSM/W-CDMA.

That is, in a case where the communication standard is LTE and theterminal 11 a performs transmission, the terminal 11 a determines andnotifies the EBI, the EBI/NSAPI determination unit 13 f outputs theinformation to the display control unit 5. As an example, in thecommunication standard LTE, in a case where the terminal 11 a notifiesEBI “5” of PDN1 (Default) and EBI “6” of PDN2 (Dedicated), the terminal11 a outputs the information to the display control unit 5. In addition,in a case where the communication standard is LTE and the measurementdevice 1A performs transmission, the tester operates the operation unit2 to set the EBI in advance through the EBI/NSAPI determination unit 13f. It should be noted that the measurement device 1A can automaticallyset the EBI.

On the other hand, in a case where the communication standard isGSM/W-CDMA and the terminal 11 a performs transmission, the terminal 11a determines and notifies the NSAPI, and the EBI/NSAPI determinationunit 13 f outputs the information to the display control unit 5. As anexample, in the communication standard GSM/W-CDMA, in a case where theterminal 11 a notifies the NSAPI “5” of PDN1 (Primary) and the NSAPI “6”of PDN2 (secondary), the information is output to the display controlunit 5. In addition, in a case where the communication standard isGSM/W-CDMA and the measurement device 1A performs transmission, thetester operates the operation unit 2 to set the NSAPI in advance throughthe EBI/NSAPI determination unit 13 f. It should be noted that themeasurement device 1A can automatically set NSAPI.

The Linked-EBI/Linked-NSAPI determination unit 13 g determinesLinked-EBI/Linked-NSAPI on the basis of setting information obtained byoperating the operation unit 2 or information (notification information)included in a packet for each service from the terminal 11 a. TheLinked-EBI/Linked-NSAPI is subordinate relationship identificationinformation that is allocated only to the secondary PDP (Dedicated PDN)and indicates the subordinate relationship to which Primary PDP (DefaultPDN).

The method of determining the value of Linked-EBI/Linked-NSAPI by theLinked-EBI/Linked-NSAPI determination unit 13 g differs depending onwhether the communication standard is LTE or GSM/W-CDMA.

More specifically, in a case where the communication standard is LTE andthe terminal 11 a performs transmission, the terminal 11 a determinesand notifies Linked-EBI, and the Linked-EBI/Linked-NSAPI determinationunit 13 g outputs the information to the display control unit 5. As anexample, in the communication standard LTE, in a case where the terminal11 a notifies of Linked-EBI “5” of PDN2 (Dedicated), the Linked-EBI “5”is output to the display control unit 5. In a case where thecommunication standard is LTE and the measurement device 1A performstransmission, the tester operates the operation unit 2 to set Linked-EBIin advance. It should be noted that the measurement device 1A canautomatically set Linked-EBI.

On the other hand, in a case where the communication standard isGSM/W-CDMA and the terminal 11 a performs transmission, first, there isa notification for setting the Primary PDP, which includes values ofNSAPI and a transaction identifier (TI: an identifier for identifyingthe processing (processing group)). Next, there is a notification forsetting the secondary PDP, which includes the value of Linked-TI. Here,in a case where the value of the TI of the Primary PDP 1 and the valueof the Linked-TI of the secondary PDP 2 are the same, the Primary PDP 1and the secondary PDP 2 are in a parent-child relationship. Utilizingthis, the Linked-EBI/Linked-NSAPI determination unit 13 g determineswhich Primary PDP the secondary PDP notified from the terminal 11 a issubordinate to, and determines the NSAPI value of the master Primary PDPis determined as the value of the Linked-TI of the slave secondary PDP.As an example, in the communication standard GSM/W-CDMA, since the valueof the TI of the Primary PDP1 and the value of the Linked-TI of thesecondary PDP2 are both “0” and the same value, it is determined thatthe Primary PDP1 and the secondary PDP2 have a parent-childrelationship. Thus, the NSAPI value “5” of the master Primary PDP1 isdetermined as the Linked-NSAPI value “5” of the slave secondary PDP2.

In a case where the communication standard is GSM/W-CDMA and themeasurement device 1A performs transmission, the tester operates theoperation unit 2 to set Linked-NSAPI in advance. It should be noted thatthe measurement device 1A can automatically set Linked-NSAPI.

In this example, in the communication standard GSM/W-CDMA, the onecorresponding to the Linked-EBI of the communication standard LTE iscalled Linked-NSAPI.

Then, in the multiplex-communication-related display unit 6 d to bedescribed later, under the control of the display control unit 5 basedon the Linked-EBI or the Linked-NSAPI determined by theLinked-EBI/Linked-NSAPI determination unit 13 g, the values of themaster EBI and NSAPI are displayed in, for example, a display form shownin FIG. 29.

The UE-Address determination unit 13 h determines the UE-Address that isthe IP address of the terminal 11 a as a test target. The pseudo basetransceiver station control unit 4 of the measurement device 1Adetermines the IP address of the terminal 11 a. Therefore, the testeroperates the operation unit 2 to perform the setting in advance in botha case where the terminal 11 a performs transmission and a case wherethe measurement device 1A performs transmission. It should be noted thatthe measurement device 1A can automatically set the IP address of theterminal 11 a.

The DNS-Address determination unit 13 i determines a DNS-Address, whichis the address of a DNS server. The DNS-Address is set in advance by thetester operating the operation unit 2. It should be noted that theDNS-Address can be automatically set by the measurement device 1A.

The DNS server is a server that manages the association between a domainname and an IP address. The measurement device LA has a pseudo networkfunction inside, and also simulates the DNS server. The“Primary/secondary” of DNS-Address means a main system and a sub system(two or more DNS servers are usually provided).

Then, in the multiplex-communication-related display unit 6 d to bedescribed later, under the control of the display control unit 5 basedon the DNS-Address determined by the DNS-Address determination unit 13i, the DNS server address is displayed in, for example, a display formshown in FIG. 29.

The Access-Point-Name determination unit 13 j determinesAccess-Point-Name, which is the domain name of the communicationcarrier. The terminal 11 a such as a mobile phone, which performscommunication under contract with a specific communication carrier,performs communication through the Access-Point of the communicationcarrier. The measurement device 1A has a pseudo network function inside,and also simulates the domain of the communication carrier.

In a case where the terminal 11 a performs transmission, the terminal 11a determines and notifies the Access-Point-Name, and theAccess-Point-Name determination unit 13 j outputs the information to thedisplay control unit 5. In a case where the measurement device 1Aperforms transmission, the tester operates the operation unit 2 to setthe Access-Point-Name in advance through the Access-Point-Namedetermination unit 13 j.

It should be noted that the measurement device 1A is able toautomatically set Access-Point-Name. Actually, the tester who is aterminal developer knows what Access-Point-Name the terminal 11 anotifies, and sets the Access-Point-Name in the measurement device 1A.

In a case of measuring the terminal 11 a, the NR measurement-relatedinformation determination unit 13 k monitors a simulative communicationoperation in which the virtual NR network 12 d simulates basetransceiver stations in the NR area and the LTE area with the terminal11 a under the control of the pseudo base transceiver station controlunit 4, and outputs various kinds of information, which are transmittedto and received from the terminal 11 a in the simulative communicationoperation, as NR measurement-related information to the display controlunit 5.

In this example, the pseudo base transceiver station control unit 4 isdescribed as an example in which a pre-LTE communication standard suchas GSM/W-CDMA, LTE, and NR are multiplexed. It is also possible to adopta configuration in which functions compliant with only LTE and NR areselected.

Further, in the present embodiment, the display unit 6 has an NRmeasurement-related display unit 6 e having a screen configurationdifferent from the screen configuration shown in FIG. 29. The NRmeasurement-related display unit 6 e is a function unit that displays NRmeasurement-related information which is input from the NRmeasurement-related information determination unit 13 k, and displays amain screen 33 a (refer to FIGS. 9, 10, 11, and 12) relating tomeasurement of the terminal 11 a, which will be described later, andvarious screens of the lower hierarchy thereof, that is, a simulationmodel setting screen 33 b (refer to FIGS. 13, 14, and 15), a connectionconfirmation/support request screen (refer to FIG. 16), a DC operationconfirmation screen (refer to FIGS. 17 and 18), and a test case viewscreen (refer to FIG. 19), a component confirmation screen (refer toFIGS. 20 and 21), a power characteristic confirmation screen 33 j (referto FIG. 22), and a throughput confirmation screen 33 k (refer to FIG.23). In the present embodiment, the display control unit 5 also controlsthe display of the NR measurement-related information to the NRmeasurement-related information determination unit 13 k.

Next, the display processing operation of themultiplex-communication-related information in the measurement device 1Aconfigured as described above will be described with reference to theflowcharts of FIGS. 2 and 3. First, a display processing procedure in acase where the measurement device 1A performs transmission will bedescribed with reference to a flowchart of FIG. 2.

Under the control of the pseudo base transceiver station control unit 4,the measurement device 1A transmits a packet from thetransmitting/receiving unit 3 to the terminal 11 a (ST11). Then, thedisplay control unit 5 acquires information, which is set in advance inthe measurement device 1A through the operation input of the operationunit 2, from the information displayed on the display unit 6 through thepseudo base transceiver station control unit 4 (ST12). Subsequently, themeasurement device 1A receives the packet transmitted by the terminal 11a in response to the transmitting/receiving unit 3 (ST13). After that,in the measurement device 1A, the display control unit 5 acquiresinformation, which is included in the packet from the terminal 11 a,from the information displayed on the display unit 6 through the pseudobase transceiver station control unit 4 (ST14). Next, in the measurementdevice 1A, the display control unit 5 acquires the information, which isdetermined by the display information determination unit 13 on the basisof the information included in the packet from the terminal 11 a, fromthe information displayed on the display unit 6 through the pseudo basetransceiver station control unit 4. (ST15). Then, the display unit 6displays the information acquired by the display control unit 5 in, forexample, a display form shown in FIG. 29 (ST16).

Next, a display processing procedure in a case where the terminal 11 aperforms transmission will be described with reference to a flowchart ofFIG. 3.

In the measurement device 1A, in a case where the transmitting/receivingunit 3 receives the packet transmitted by the terminal 11 a under thecontrol of the pseudo base transceiver station control unit 4 (ST21),the display control unit 5 acquires the information, which is includedin the packet from the terminal 11 a, from the information displayed onthe display unit 6 through the pseudo base transceiver station controlunit 4 (ST22). Subsequently, the display control unit 5 of themeasurement device 1A acquires information preset in the measurementdevice 1A from the information displayed on the display unit 6 throughthe pseudo base transceiver station control unit 4 (ST23). Next, in themeasurement device 1A, the display control unit 5 acquires theinformation, which is determined by the display informationdetermination unit 13 on the basis of the information included in thepacket from the terminal 11 a, from the information displayed on thedisplay unit 6 through the pseudo base transceiver station control unit4. (ST24). Then, the display unit 6 displays the information acquired bythe display control unit 5 in, for example, a display form shown in FIG.29 (ST25).

It should be noted that it is also possible to adopt a configuration inwhich the operation unit 2, the transmitting/receiving unit 3, thepseudo base transceiver station control unit 4, the display control unit5, and the display unit 6 are not integrated, but the measurement deviceincludes the transmitting/receiving unit 3 and the measurement device isexternally controlled by a control PC provided with the operation unit2, the pseudo base transceiver station control unit 4, the displaycontrol unit 5, and the display unit 6.

Next, a measurement operation of the terminal 11 a in the measurementdevice 1A according to the present embodiment and a display processingprocedure for displaying the NR measurement-related information relatingto the measurement will be described. First, the measurement operationof the terminal 11 a will be described.

FIG. 4 is a diagram showing a connection configuration as acommunication terminal measurement system 1B having the same functionsas the measurement device 1A according to the present embodiment. Inparticular, the diagram shows an example of the following configuration.An NR measurement device 20 that simulates the communication function ofthe base transceiver station in the NR area of the non-standalone NRnetwork, an LTE measurement device 21 that are configured separatelyfrom the NR measurement device 20 and that simulates a communicationfunction of the base transceiver station in the LTE area of thenon-standalone NR network, and a control device 22 that collectivelycontrols the NR measurement device 20 and the LTE measurement device 21are connected through the network 24. The NR measurement device 20includes a first transmitting/receiving unit (for example, correspondingto the transmitting/receiving unit 3 that transmits and receives asignal of the NR communication standard in FIG. 1) that transmits andreceives a signal between the NR base transceiver station and theterminal 11 a. The LTE measurement device 21 includes a secondtransmitting/receiving unit (for example, corresponding to thetransmitting/receiving unit 3 that transmits and receives signals of theLTE communication standard in FIG. 1) that transmits and receivessignals between the LTE base transceiver station and the terminal 11 a.In the communication terminal measurement system 1B of the presentembodiment having such a connection mode, the control device 22 is alsoconnected to an application server 23 as an external server through anetwork 24. The NR measurement device 20 and the LTE measurement device21 form the communication terminal measurement apparatus of the presentinvention.

The NR measurement device 20 and the LTE measurement device 21 areconnected to a measurement mechanism unit 25 including a holdingmechanism that holds the terminal 11 a as a measurement target (refer to“UE” in FIG. 4). The measurement mechanism unit 25 is configured asfollows. For example, the terminal 11 a as a measurement target and ameasurement antenna (a transmission antenna and a reception antenna),which is capable of communicating with a not-shown antenna built in theterminal 11 a by a predetermined radio frequency signal, areaccommodated in, for example, an over-the-air (OTA) chamber 25 a. In thefrequency range of mmW, the NR measurement device 20 is connected to anantenna in the OTA chamber 25 a, and the LTE measurement device 21 isconnected by wire to the terminal 11 a provided in the OTA chamber 25 a.Although not shown, in the frequency range of Sub6 GHz, the NRmeasurement device 20 and the LTE measurement device 21 are connected tothe terminal 11 a through an RF Switching Box or the like in a wiredmanner.

The control device 22 functions as a control PC that controls the NRmeasurement device 20 and the LTE measurement device 21 with a computerdevice such as a personal computer (PC). The control device 22 has, forexample, a control unit 31, an operation unit 32, and a display unit 33,as shown in FIG. 5. The control unit 31 has a CPU 31 a, a storage unit31 b, and an external interface (I/F) unit 35. The CPU 31 a realizes,for example, a setting control unit 30 a, a simulative communicationcontrol unit 30 b, a measurement control unit 30 c, and a displaycontrol unit 30 d to be described later by executing a program stored inthe storage unit 31 b. The operation unit 32 and the display unit 33have the same configuration as the operation unit 2 and the display unit6 described above. The external interface (I/F) unit 31 c performs aninterface function for connecting the control device 22 to the NRmeasurement device 20 and the LTE measurement device 21 through thenetwork 24.

In the control device 22, the CPU 31 a has a setting control unit 30 a,a simulative communication control unit 30 b, a measurement control unit30 c, a display control unit 30 d, and a virtual connection destination30 e.

The setting control unit 30 a performs setting of a scenario (includinga base transceiver station as a simulative communication target) formeasurement of the terminal 11 a and various kinds of setting processingof simulation parameters and the like. The simulative communicationcontrol unit 30 b performs a simulative communication operation. In thesimulative communication operation, communication between the NR basetransceiver station and the LTE base transceiver station and theterminal 11 a as a measurement target, for which a combination forperforming simulative communication is set in advance, is simulatedusing the simulation parameters in accordance with the above-describedscenario.

The measurement control unit 30 c acquires signals transmitted andreceived between the NR base transceiver station and the LTE basetransceiver station and the terminal 11 a during the simulativecommunication operation, and performs control such that the measurementunit measures whether or not the terminal 11 a operates normally.

The display control unit 30 d performs display control for causing thedisplay unit 33 to display measurement-related information (informationfor detecting a combination of base transceiver stations performing thesimulative communication, the used carrier, and the like) relating tothe measurement of the terminal 11 a based on signals transmitted andreceived between the terminal 11 a, the NR base transceiver station, andthe LTE base transceiver station during the simulative communicationoperation, in association with the type of the radio access technology(RAT).

The setting control unit 30 a, the simulative communication control unit30 b, and the measurement control unit 30 c of the control device 22correspond to the pseudo base transceiver station control unit 4 inFIG. 1. The display control unit 30 d of the control device 22corresponds to the display control unit 5 and the NR measurement-relateddisplay unit 6 e shown in FIG. 1. The virtual connection destination 30e of the control device 22 corresponds to the virtual connectiondestination 12 in FIG. 1.

Further, in the connection configuration shown in FIG. 4, the controldevice 22, the NR measurement device 20, and the LTE measurement device21 respectively constitute the control device of the present invention,the communication terminal measurement apparatus compliant with thefirst communication standard, and the communication terminal measurementapparatus compliant with the second communication standard.

Next, a display processing procedure for displaying the NRmeasurement-related information relating to the measurement of theterminal 11 a of the measurement device 1A according to the presentembodiment will be described with reference to the flowcharts shown inFIGS. 6, 7, and 8. First, the display processing procedure of theterminal 11 a before the start of measurement (terminal measurementparameter setting stage) will be described with reference to theflowchart shown in FIG. 6.

In the measurement device 1A according to the present embodiment, it isnecessary to set the number of RAT cells and the simulation parametersbefore the measurement of the terminal 11 a. In the measurement device1A having the connection configuration shown in FIG. 4, in the controldevice 22, in a case where the measurement request of the terminal 11 ais input from the operation unit 32, the display control unit 30 dcauses the display unit 33 to display, for example, the main screen 33 ahaving the screen configurations shown in FIGS. 11 and 12 (in which thesimulation parameter display area 33 a 4 is not displayed) relating tothe NR and LTE measurement (step S31).

In a state where the main screen 33 a is being displayed, the displaycontrol unit 30 d determines whether or not a RAT cell number settingrequest is input (step S32). Here, if it is determined that the RAT cellnumber setting request is not input (NO in step S32), the processingproceeds to step S37.

In contrast, if it is determined that the RAT cell number settingrequest is input (YES in step S32), then display control unit 30 dcauses the display unit 33 to display a simulation model setting screen33 b in the lower hierarchy of the main screen 33 a (Step S33). Thesimulation model setting screen 33 b has, for example, a simulationmodel setting area (RAT cell number setting screen) 33 b 1 (refer toFIG. 14) and a simulation model display area 33 b 2 (refer to FIG. 15),as shown in FIG. 13.

In a state where the simulation model setting screen 33 b is beingdisplayed, the setting control unit 30 a executes a setting processingof the number of RAT cells and a simulation model setting confirmationprocessing on the basis of the input from the operation unit 32 (stepS34).

Further, while executing the setting processing in step S34, the displaycontrol unit 30 d determines whether or not a simulation parametersetting request is input (step S35). The simulation parameter settingrequest can be made by, for example, selecting and operating either thetabs 41 a or 41 b provided on the right end portion of the main screen33 b. If it is determined that the simulation parameter setting requestis not input (NO in step S35), the processing proceeds to step S37.

In contrast, if it is determined that the simulation parameter settingrequest is input (YES in step S35), the display control unit 30 d, forexample, displays a simulation parameter display area 33 a 4 (thedisplay area of the simulation parameter setting screen 33 c) on themain screen 33 a (refer to FIGS. 9 and 10), and the setting control unit30 a executes simulation parameter setting processing while receiving anoperation input from the operation unit 32 on the simulation parametersetting screen 33 c (step S36). In the simulation parameter display area33 a 4 displayed on the main screen 33 a at the time of this settingprocessing, a simulation parameter setting screen 33 c 1 (refer to FIG.9) or the simulation parameter setting screen 33 c 2 (refer to FIG. 10)is displayed depending on whether the request for setting the simulationparameters is made by selecting the tab 41 a or the tab 41 b.

During the display processing of the simulation parameter setting screen33 c 1 or 33 c 2 in step S36 or after the display processing iscompleted, for example, in a state where the display is returned to thedisplay of the main screen 33 a, the display control unit 30 ddetermines whether or not a setting confirmation request for issuing aninstruction to confirm the setting contents is input (step S37). Here,if it is determined that the setting confirmation request is not input(NO in step S37), the processing proceeds to step S39.

In contrast, if it is determined that the setting confirmation requestis input (YES in step S37), the display control unit 30 d causes thedisplay unit 33 to display a setting confirmation screen correspondingto the request contents (step S38).

Regarding the processing in steps S37 and S38 described above, in a casewhere the simulation setting confirmation request is input in step S37,the display control unit 30 d displays, for example, a simulation modelsetting area (RAT cell number setting screen) 33 b 1 as shown in FIG. 14and a simulation model setting screen 33 b (refer to FIG. 13) having ascreen configuration including a simulation model display area 33 b 2 asshown in FIG. 15, in step S38. Further, in a case where the connectionparameter confirmation request is input in step S37, the display controlunit 30 d displays, for example, a connection parameter confirmationscreen 33 a 5 having the screen configuration shown in FIG. 11 or 12 inaccordance with an operation of pressing the base transceiver stationselection toolbar 45 and the display command toolbar 47, which will bedescribed later, in step S38. In a case where a connectionconfirmation/support request is input in step S37, the display controlunit 30 d displays a connection confirmation/support request screen 33 dhaving a screen configuration shown in FIG. 16, for example, in stepS38.

In a state where the various setting confirmation screens are beingdisplayed in step S38, the display control unit 30 d determines whetheror not an end request for issuing an instruction to end the processingis input (step S39). If it is determined that the end request is notinput (NO in step S39), the display control unit 30 d returns to stepS31 in accordance with the instruction to return the processing, andcontinues the processing after step S31 on the display of the mainscreen 33 a.

In contrast, if it is determined that the end request is input (YES instep S39), the display control unit 30 d ends the above-described seriesof display control in the terminal measurement parameter setting stage.

Next, the display forms of the main screen 33 a (refer to FIGS. 9 to 12)displayed in each step relating to the series of display control shownin FIG. 6, the simulation parameter setting screens 33 c 1 and 33 c 2(refer to FIGS. 9 and 10), the connection parameter confirmation screen33 a 5 (refer to FIGS. 11 and 12), the simulation model setting screen33 b (refer to FIGS. 13, 14, and 15), and the connectionconfirmation/support request screen 33 d (refer to FIG. 12) will bedescribed in more detail.

As shown in FIGS. 9 and 10, the main screen 33 a displayed in step S31in FIG. 6 has a sequence display area 33 a 1, a connection statusdisplay area 33 a 2, a PDN information display area 33 a 3, and asimulation parameter display area 33 a 4. Further, the main screen 33 ais provided with tabs 41 a and 41 b for identifying the communicationstandard, for example, at the right end portion of the screen.

The tabs 41 a and 41 b are tabs (operation tool) for selecting acommunication standard used for displaying a simulation parametersetting screen 33 c 1 (refer to FIG. 9) compliant with NR and asimulation parameter setting screen 33 c 2 (refer to FIG. 10) compliantwith LTE, respectively. The tabs 41 a and 41 b are provided one by onecorresponding to the NR which is the first communication standard or theLTE which is the second communication standard according to the presentembodiment, and are not provided respectively corresponding to the basetransceiver stations in a similar manner to the base transceiver stationidentification tabs 40 (refer to FIGS. 31 to 33).

In the main screen 33 a shown in FIGS. 9 and 10, the sequence displayarea 33 a 1 has a function equivalent to that of the sequence displayunit 6 a in the configuration of the display unit 6 shown in FIG. 29.The sequence display area 33 a 1 is an area for displaying whichsequence status the terminal 11 a as a measurement target is in. Thesequence status is any of “Power Off”, “Detach (position Registration),“Registration (position registration)”, “Idle (standby status)”,“Origination (outgoing)”, “Termination (incoming)”, “Communication(communication status)”, “UE (user equipment) Release (terminaldisconnection)”, “NW (network) Release (connection destinationdisconnection)”, “Handover”, and the like.

The connection status display area 33 a 2 is an area in which theconnection status between the terminal 11 a and the virtual connectiondestination (non-standalone NR) through the measurement device 1A isdisplayed. The connection status display area 33 a 2 does not displaythe connection status in a case where the number of RAT cells is notset. On the other hand, after the setting of the number of RAT cells isperformed, a connection status according to the setting contents isdisplayed. The connection status is displayed as an image whichindicates the connection status of both cells by using an NR cell iconindicating an NR base transceiver station cell (hereinafter, NR cell)corresponding to a set cell in the NR area, and an LTE cell iconindicating an LTE base transceiver station cell (hereinafter, LTE cell)corresponding to a set cell in the LTE area.

The PDN information display area 33 a 3 is an area for displayinginformation relating to packet communication (for example, voice call)performed by the terminal 11 a via a plurality of (for example, eighttypes at maximum) PDNs (packet data networks) as a connectiondestination of the network after the terminal 11 a to be measured isconnected to the network via the base transceiver station.

The simulation parameter display area 33 a 4 is a display area as thesimulation parameter setting screen for setting simulation parametersfor the set NR and LTE cells after setting of the number of RAT cells.The simulation parameter setting screen includes, for example, asimulation parameter setting screen 33 c 1 having a display mode shownin FIG. 9 used in a case of setting simulation parameters for the NRbase transceiver station (NR cell), and for example, a simulationparameter setting screen 33 c 2 having a display mode shown in FIG. 10used in a case of setting simulation parameters for LTE cells. Thesimulation parameter setting screens 33 c 1 and 33 c 2 respectivelycorrespond to the first simulation parameter display area and the secondsimulation parameter display area of the present invention.

The simulation parameter setting screen 33 c 1 (refer to FIG. 9) can bedisplayed by, for example, selecting (clicking) the tab 41 a of the tabs41 a and 41 b provided on the main screen 33 a. On the other hand, thesimulation parameter setting screen 33 c 2 shown in FIG. 10 can bedisplayed by clicking the other tab 41 b.

The configuration of the simulation parameter setting screens 33 c 1 and33 c 2 will be described in more detail with reference to FIGS. 9 and10. In FIG. 9, the simulation parameter setting screen 33 c 1 has ascreen configuration in which one setting item field 43 and a pluralityof base transceiver station identification fields 44 are arranged in ahorizontal row from the left end of the screen to the right end of thescreen. The setting item field 43 has a configuration in which aplurality of setting items relating to the simulation parameters arevertically arranged, and each base transceiver station identificationfield 44 has a configuration in which setting fields corresponding tothe plurality of setting items are vertically arranged. It should benoted that the number of base transceiver station identification fields44 corresponds to the number of base transceiver stations for the samecommunication standard (NR in the example of FIG. 9). That is, the basetransceiver station identification field 44 has a configuration in whichthe base transceiver station identification fields 44 a, 44 b, 44 c, 44d, . . . compliant with the NR base transceiver stations numbered 1 to Nare arranged side by side.

On the simulation parameter setting screen 33 c 1 having the abovescreen configuration, it is possible to set and confirm the simulationparameters for each setting item in the setting item field 43 for the NRbase transceiver stations numbered 1 to N.

Similarly, the simulation parameter setting screen 33 c 2 shown in FIG.10 has a screen configuration in which one setting item field 43 and aplurality of base transceiver station identification fields 44 arearranged in a horizontal row from the left end of the screen to theright end of the screen. Here, the base transceiver stationidentification field 44 has a configuration in which the basetransceiver station identification fields 44 a, 44 b, and 44 c, . . .corresponding to the base transceiver stations (LTE base transceiverstations) numbered from 1 to N of the same communication standard (LTEin the example of FIG. 10) are arranged side by side. On the simulationparameter setting screen 33 c 2 having the above screen configuration,it is possible to set and confirm the simulation parameters for eachsetting item in the setting item field 43 for the LTE base transceiverstations numbered 1 to N.

In the simulation parameter setting screen 33 c 1 shown in FIG. 9, thesetting items in the setting item field 43 are roughly common items(“Common”) common to NR and LTE and specific items (“NR”) specific toNR. The common items include, for example, TemplateCell, Cell Name, TRxRef point, DL Ref Power, UE Rx Power, DL Pathloss, UL RefPower, UE TxPower, UL Pathloss, MCC, MNC, Call Identity, E-PLMN List,EmergencyNumber List, Cell Barred, Access Class Barred, and the like.

The specific items include RS EPRE, Uplink Target Power Density, DuplexMode, NR Band, Channel(DL), Frequency(DL), Reference Point A(DL),Channel(UL), Frequency(UL), Reference Point A(UL), DL SubcarrierSpacing, UL Subcarrier Spacing, DL BandWidth, UL BandWidth, TDDConfiguration, Reference Subcarrier Spacing, DL/UL Periodicity, Numberof DL Slots, Number of UL Slots, Number of DL Symbols, Number of ULSymbols, TDD Configuration Dedicated, Mode, Slot List, and the like.

Similarly, in the simulation parameter setting screen 33 c 2 shown inFIG. 10, the setting items in the setting item field 43 are roughlycommon items (“Common”) of NR and LTE and specific items (“LTE”)specific to LTE. The common items include, for example, Template Cell,Cell Name, TRx Ref point, DL Ref Power, UE Rx Power, DL Pathloss, ULRefPower, UE Tx Power, UL Pathloss, MCC, MNC, Call Identity, IMS EmergencySupport, E-PLMN List, Emergency Number List, Cell Barred, Access ClassBarred, LTEAccess Class Barred, and the like.

The specific items include RS EPRE, Uplink Target Power Density, MMEGroup ID, MME Code, TAC, Duplex Mode, E-UTRA Band, Channel(DL),Frequency(DL), Channel(UL), Frequency(UL), DL BandWidth, UL BandWidth,Number of DL Antennas, Transmission Mode, DL Modulation Order, ULModulation Order, Physical Cell ID, PHICH Resouce, CFI, UL/DLConfiguration, Special Subframe Configuration, and the like.

In a state where the simulation parameter setting screen 33 c 1 shown inFIG. 9 is displayed, a user is able to set desired values (simulationparameter values), which are for the setting items of the common itemand the specific item described above for each of the NR basetransceiver stations corresponding to the base transceiver stationidentification fields 44 a, 44 b, 44 c, . . . , to the base transceiverstation identification fields 44 a, 44 b, 44 c, The setting operation atthat time can be performed, for example, by inputting the desiredsetting values from the operation unit 32.

Similarly, in a state where the simulation parameter setting screen 33 c2 shown in FIG. 10 is displayed, a user is able to set desired values,which are for the setting items of the common item and the specific itemdescribed above for each of the LTE base transceiver stationscorresponding to the base transceiver station identification fields 44a, 44 b, 44 c, . . . , to the base transceiver station identificationfields 44 a, 44 b, 44 c, . . . .

The simulation parameter setting screens 33 c 1 and 33 c 2 having thescreen configurations shown in FIGS. 9 and 10 are displayed (opened) inthe connection status display area 33 a 2 of the main screen 33 a byclicking the tab 41 a or the tab 41 b as described above. On the otherhand, the simulation parameter setting screens 33 c 1 and 33 c 2 arehidden (closed) by performing a predetermined non-display selectionoperation (for example, clicking the tab 41 a or 41 b again).

The simulation parameter setting screens 33 c 1 and 33 c 2 are opened inthe connection status display area 33 a 2 of the main screen 33 a, andin the same screen, a simulation model setting screen 33 b (refer toFIGS. 13, 14, and 15) described later is used to display the presetsetting contents in an array in the setting fields of the basetransceiver station identification fields 44 a, 44 b, 44 c, . . . of therespective NR base transceiver stations or the respective LTE basetransceiver stations. That is, in the present embodiment, the settingand confirmation of the setting of the simulation parameters for all theset NR base transceiver stations or LTE base transceiver stations can beperformed through the selection operation of the tab 41 a or the tab 41b.

Based on the configuration of the main screen 33 a shown in FIGS. 9 and10, the details of the simulation parameter setting processing in stepS36 of FIG. 6 will be described with reference to the flowchart shown inFIG. 7.

The simulation parameter setting processing shown in FIG. 7 is startedby receiving a selection operation of the tab 41 a or the tab 41 b whilethe main screen 33 a is displayed. In a case where the selectionoperation of the tab 41 a or the tab 41 b is received (step S36 a), thedisplay control unit 30 first checks which of the tab 41 a or the tab 41b is selected, and from the result of check, it is determined whetherthe selected communication standard is NR or LTE (step S36 b).

If it is determined that the communication standard selected here is NR(“NR” in step S36 b), the display control unit 30 displays thesimulation parameter setting screen 33 c 1 for NR (refer to FIG. 9) onthe main screen 33 a (step S36 c).

Next, the setting control unit 30 a receives an input of a setting valueof the simulation parameter for the NR from a user on the displayedsimulation parameter setting screen 33 c 1 for each setting item, andthe setting value is set in each corresponding setting field. Then, thesimulation parameter setting processing is executed (step S36 e).

On the other hand, if it is determined that the communication standardselected in step S36 b is LTE (“LTE” in step S36 b), the display controlunit 30 displays the simulation parameter setting screen 33 c 2 for LTE(refer to FIG. 10) on the main screen 33 a (step S36 d). Next, thesetting control unit 30 a receives an input of a setting value of thesimulation parameter for the LTE from a user on the displayed simulationparameter setting screen 33 c 2 for each setting item. Then, thesimulation parameter setting processing is executed (step S36 e).

During execution of the NR or LTE simulation parameter settingprocessing in step S36 e, the display control unit 30 determines whetheror not there is an instruction (the above-described non-displayselection operation) to end the simulation parameter setting (step S36f). If it is determined that there is no instruction to end thesimulation parameter setting (NO in step S36 f), the setting controlunit 30 a continuously executes the simulation parameter settingprocessing of NR or LTE (step S36 e).

On the other hand, if it is determined that there is instruction to endthe simulation parameter setting (YES in step S36 f), the displaycontrol unit 30 d hides the NR simulation parameter setting screen 33 c1 being displayed or the simulation parameter setting screen 33 c 2 forLTE (step S36 g), and a series of simulation parameter settingprocessing ends.

According to the simulation parameter setting processing in FIG. 7, onthe simulation parameter setting screen 33 c 1 or the simulationparameter setting screen 33 c 2 which is displayed in accordance withthe selection of the tab 41 a or 41 b, the simulation parameter settingfields of the NR base transceiver station or the LTE base transceiverstation are displayed in array. As a result, a user is able to receiveinputs of new setting values while confirming the setting contents ofanother NR base transceiver station or the LTE base transceiver stationon the same screen in a state where the simulation parameter settingscreen 33 c 1 or the simulation parameter setting screen 33 c 2 is beingdisplayed.

Next, the configuration of the main screen 33 a in a case where thesimulation parameter setting screens 33 c 1 and 33 c 2 are hidden(non-display case) will be described. FIG. 11 is a diagram showing ascreen configuration of the main screen 33 a in a case where thesimulation parameter setting screen 33 c 1 is closed, and FIG. 12 showsa screen configuration of the main screen 33 a in a case where thesimulation parameter setting screen 33 c 2 is closed.

As shown in FIGS. 11 and 12, on the main screen 33 a, the entireconnection status display area 33 a 2 is displayed in a case where thesimulation parameter setting screens 33 c 1 and 33 c 2 are closed.

At the top of the connection status display area 33 a 2 in the mainscreen 33 a shown in FIGS. 11 and 12, one base transceiver stationselection toolbar 45 and one display command toolbar 47 are provided soas to extend horizontally and be arranged vertically on the screen. Thebase transceiver station selection toolbar 45 has a plurality of basetransceiver station selection tabs 46 for individually specifyingoptional NR base transceiver stations or LTE base transceiver stationswhich are set at that time as connection confirmation destinations. Inthis example, as the base transceiver station selection tabs 46, thereare provided four NR base transceiver station selection tabs 46 a, 46 b,46 c, and 46 d respectively corresponding to the NR base transceiverstations having the identification information “NR1”, “NR2”, “NR3”, and“NR4” and three LTE base transceiver station selection tabs 46 e, 46 f,and 46 g respectively corresponding to the LTE base transceiver stationshaving the identification information of “LTE1”, “LTE2”, and “LTE3”.

The base transceiver station selection toolbar 45 is configured suchthat the NR base transceiver station or the LTE base transceiver stationcorresponding to the pressed base transceiver station selection tab 46can be specified (selected) as the connection confirmation destinationby pressing one of the base transceiver station selection tabs 46 a, 46b, 46 c, 46 d, 46 e, 46 f, and 46 g.

The base transceiver station selection toolbar 45 is not limited tohaving seven base transceiver station selection tabs 46, and may havesix or more base transceiver stations or a number less than six. Also,the distribution of the numbers for NR and LTE can be set optionally.

The display command toolbar 47 is a tool for inputting a command fordisplaying the connection parameters of the connection confirmationdestination (NR base transceiver station or LTE base transceiverstation) selected by the base transceiver station selection toolbar 45.

According to the main screen 33 a having the above screen configuration,a user presses the desired base transceiver station selection tab 46 ofthe base transceiver station selection toolbar 45 and then presses thedisplay command toolbar 47. In such a manner, the connection parametersof connection between the NR base transceiver station or the LTE basetransceiver station corresponding to the pressed base transceiverstation selection tab 46 and the mobile communication terminal (terminal11 a) can be displayed as an image in the connection status display area33 a 2.

In FIG. 11 as an example, the NR base transceiver station identified by“NR1” is specified as the connection confirmation destination.Therefore, the connection parameter confirmation screen 33 a 5 isensured in the upper left area of the connection status display area 33a 2. In the connection parameter confirmation screen 33 a 5, connectionparameters of connection between the NR base transceiver station and theobject (indicated by the symbol “UE” in the drawing and corresponds tothe terminal 11 a) under test at this time are displayed as an image.

Further, in FIG. 12 as an example, by selecting the LTE base transceiverstation identified by “LTE1”, the connection parameter confirmationscreen 33 a 5 is ensured in the upper left area of the connection statusdisplay area 33 a 2. In the connection parameter confirmation screen 33a 5, the connection parameters of connection between the LTE basetransceiver station and the terminal 11 a at this time are displayed asan image.

In FIGS. 11 and 12, examples of connection parameters displayed in theconnection parameter confirmation screen 33 a 5 include wirelesstransmission/reception power (output), transmission speeds oftransmission and reception packets, and the like at the terminal 11 a.

Similarly, in a case where the NR base transceiver station identified by“NR2”, “NR3”, or “NR4” in FIGS. 11 and 12 is specified as the connectionconfirmation destination, or in a case where the LTE base transceiverstation identified by “LTE1”, “LTE2”, or “LTE3” is specified as theconnection confirmation destination, the connection parameters ofconnection between the NR base transceiver station or the LTE basetransceiver station and the terminal 11 a at this time can be displayedin an image in the connection parameter confirmation screen 33 a 5 ofthe connection status display area 33 a 2.

In the conventional connection parameter display mode shown in FIGS. 32and 33, two or more operation toolbars 48 may be selected, and theconnection parameter display areas 49 displayed in accordance with theselection may occupy the entire connection status display area 33 m 2.In that case, the screen is very difficult to view, and a user may notview what the user wants to view. In addition, in order to confirm theconnection parameters with the mobile communication terminal in the basetransceiver station after setting the simulation parameters, the samenumber of operation toolbars 48 as the number of set base transceiverstations are displayed in a line in the vertical direction. Since theconnection parameter display areas 49 of the corresponding basetransceiver stations are displayed in accordance with the selection ofthe operation toolbars 48, the connection parameter display areas 49corresponding to the selected operation toolbars 48 are multiplydisplayed in multiple stages. Thus, the connection status display area33 m 2 is complex, and it is difficult to view the screen, therebymaking it difficult to confirm the connection parameters.

On the other hand, in the present embodiment shown in FIGS. 11 and 12,in the main screen 33 a in a state where the simulation parametersetting screens 33 c 1 and 33 c 2 are closed, it is possible to confirm,on the connection parameter confirmation screen 33 a 5, connectionparameters of connection between the terminal 11 a and all the basetransceiver stations (respectively identified by “NR1”, “NR2”, “NR3”,“NR4”, “LTE1”, “LTE2”, and “LTE3”) respectively corresponding to thebase transceiver station selection tabs 46, which are selected throughthe selection operation of the plurality of base transceiver stationselection tabs 46 (46 a, 46 b, 46 c, 46 d, 46 e, 46 f, and 46 g) on thebase transceiver station selection toolbar 45. Therefore, it is possibleto prevent the screen from being covered with toolbars and beingdifficult to view, as in a conventional system having the number oftoolbars corresponding to the number of base transceiver stations anddisplaying connection parameters of a plurality of base transceiverstations. As a result, it is possible to make the operation ofconfirming the connection parameters easy.

The main screen 33 a having the above configuration is displayed on thedisplay unit 33 through the display control of the display control unit30 d (refer to step S31 in FIG. 6). At this time, in a case where thenumber of RAT cells is set in advance, the display control unit 30 ddisplays the connection status of the selected base transceiver stations(cells) in the connection status display area 33 a 2 of the main screen33 a in, for example, a form shown in FIG. 9 or 10, in accordance withthe selection of the base transceiver station selection tabs 46described above.

Here, the display control unit 30 d displays one NR cell icon (firstcell icon) indicating that the base transceiver station (NR cell) iscompliant with the NR communication standard and one LTE cell icon(second cell icon) indicating that the base transceiver station iscompliant with the LTE communication standard. The display control unit30 d performs the display such that the same number of figures as thenumber of base transceiver stations compliant with the NR communicationstandard are arranged in a line in association with the NR cell icon,and performs the display such that the same number of figures as thenumber of base transceiver stations compliant with the LTE communicationstandard are arranged in a line in association with the LTE cell icon.

The display control unit 30 d displays rectangular frames as thefigures, and displays a number for identifying a number for identifyingthe base transceiver station compliant with the NR communicationstandard and the base transceiver station compliant with the LTEcommunication standard for each of the rectangular frames. The figuremay show a box shape of which one surface is the rectangular frame, andthe figure may be displayed in a vertically stacked form.

Specifically, in the example of FIG. 9 or 10, the display control unit30 d displays the connection status in the NR area, in the connectionstatus in the NR area and the cell connection status in the LTE areadisplayed in the connection status display area 33 a 2, in a form inwhich the number of box shapes (the box shape of which one surface isthe rectangular frame) corresponding to the NR cells in the NR arearelating to the measurement of the terminal 11 a are vertically stackedto be adjacent to one NR cell icon indicating a base transceiver station(NR cell) in the NR area. In this example, since two NR cells are set,the image is displayed as an image in which two box shapes arevertically stacked. In each box-shaped rectangular frame, a numericalvalue indicating the base transceiver station number of the NR cell isnoted. The NR cell icon is represented by the reference sign of “NR”indicating the area type.

In addition, the display control unit 30 d displays the connectionstatus in the LTE area in a form in which the number of box shapescorresponding to the LTE cells in the LTE area relating to themeasurement of the terminal 11 a are vertically stacked to be adjacentto one LTE cell icon indicating a base transceiver station (LTE cell) inthe LTE area. In this example, since three LTE cells are set, three LTEcells are displayed as an image in which the cells are verticallystacked. In each box-shaped rectangular frame, a numerical valueindicating the base transceiver station number of the LTE cell is noted.The LTE cell icon is represented by “L” as the reference sign of LTEindicating the area type.

According to the display form shown in FIG. 9 or 10 of the setconnection status relating to the NR cell and the LTE cell, even in acase where the number of cells which are set in the NR area and the LTEarea increases, the NR cell icon and the LTE cell icon does notincrease. In addition, the area for displaying the rectangular frame ineach area does not expand. Further, the area for displaying therectangular frame in each area may be expanded vertically as the numberof layers of the rectangular frame increases, but the expansion can besuppressed as compared with the case where cell icons indicating theshapes of the base transceiver stations are stacked. Further, a form inwhich rectangular frames are arranged horizontally or vertically aboveor below a cell icon may be used. Further, the number of lines is notlimited to one, and a plurality of lines may be used.

FIGS. 9 and 10 each show an example in which the number of rectangularframes corresponding to the number of base transceiver stations in theNR area and the number of rectangular frames corresponding to the numberof base transceiver stations in the LTE area are respectively displayedin association with the NR cell icon and the LTE cell icon. However,instead of the rectangular frame, various graphic forms may be displayedin a form in which the graphic forms are vertically stacked orhorizontally arranged.

As described above, in the measurement device 1A according to thepresent embodiment, the display control unit 30 d performs control todisplay all cells (NR and LTE cells), which are in the NR area and LTEarea involved in the measurement of the terminal 11 a, in a display areawith a predetermined size. The number of cells varies in accordance withthe scenario (setting of the combination of cells subjected tosimulative communication operation) for simulating the communication ofthe NR communication standard.

The simulation model setting screen 33 b (refer to FIG. 13) displayed instep S33 of FIG. 6 includes, for example, a RAT cell number settingscreen (RAT cell number setting area) 33 b 1 showing the enlarged screenconfiguration in FIG. 14. The display control unit 30 d is able todisplay the simulation model setting screen 33 b including the RAT cellnumber setting screen 33 b 1 on the basis of a simulation model settingrequest operation using a tab (GUI tool) on the main screen 33 a.

In the measurement device according to the present embodiment, thedisplay control unit 30 d displays the RAT cell number setting screen 33b 1 on the simulation model setting screen 33 b as an image in which atool for selecting the number of cells for each RAT type NR or LTE isset as shown in FIGS. 13 and 14. Specifically, the display control unit30 d displays the RAT cell number setting screen 33 b 1 with a screenconfiguration including a RAT field 35 a and a cell field 35 b. In theRAT field 35 a, a single NR cell icon indicating that the radio accesstechnology (RAT; area type) is NR and a single LTE cell icon indicatingthat the RAT is LTE are arranged side by side. In the cell field 35 b, acell number selection tool for selecting the number of cells for eachRAT in accordance with the scenario is provided at each of positionsrespectively compliant with the NR cell icon and the LTE cell icon.

In the display forms shown in FIGS. 13 and 14, RAT name fields 35 c areprovided at positions vertically opposite to the respective cell numberselection tools with the NR cell icon and the LTE cell icon interposedtherebetween. In the RAT name fields 35 c, RAT names “NR” and “LTE”compliant with the NR cell icon and the LTE cell icon are noted invertical writing, respectively.

In the present embodiment, the RAT cell number setting screen 33 b 1 ofthe simulation model setting screen 33 b has the RAT field 35 a, thecell field 35 b and the RAT name fields 35 c as shown in FIG. 14, and isconfigured such that the number of cells of the corresponding RAT isselected by operating the cell number selection tool in the cell fields35 b. According to this configuration, it is not necessary to extend thedisplay area even in a case where the number of cells increases. Inaddition, since the screen configuration is simple, it is easy to viewthe screen, and the number of cells can be easily set.

In the simulation model setting screen 33 b (refer to FIG. 13), inaddition to the above-described RAT cell number setting screen 33 b 1(refer to FIG. 14), for example, a simulation model display area 33 b 2showing the enlarged screen configuration in FIG. 15 is also provided.

In the measurement device 1A according to the present embodiment, asshown in FIG. 15, the display control unit 30 d displays the simulationmodel display area 33 b 2 with a screen configuration in which displayareas 35 d and 35 e respectively compliant with NR and LTE are provided.Then, for the simulation model display area 33 b 2 having the abovescreen configuration, the display control unit 30 d performs display asfollows. In the display area 35 d compliant with the NR, one NR cellicon is displayed in a form in which a numerical value corresponding tothe number of cells which are set in the NR area is attached thereto. Inthe display area 35 e compliant with LTE, one LTE cell icon is displayedin a form in which a numerical value corresponding to the number ofcells which are set in the LTE is attached thereto.

FIG. 15 shows a display form in a case where one NR cell and three LTEcells are selected and set. In this case, for the display area 35 d, thedisplay control unit 30 d performs the display in a form in which asymbol “×1” indicating that the number of NR cells is 1 is attached tothe NR cell icon having an abbreviation symbol “N” compliant with NRnoted therein. In addition, for the display area 35 e, the displaycontrol unit 30 d performs the display in a form in which a symbol “×3”indicating that the number of LTE cells is 3 is attached to the LTE cellicon having an abbreviation symbol “L” compliant with LTE noted therein.

As described above, the display control unit 30 d displays one NR cellicon (first cell icon) and one LTE cell icon (second cell icon)respectively compliant with NR and LTE, and further displays asimulation model display area 33 b 2 having display areas 35 d and 35 erespectively compliant with the NR base transceiver station and the LTEbase transceiver station. In the display area 35 d, a form, in which anumerical value corresponding to the number of NR base transceiverstations is attached to one NR cell icon, is displayed. In the displayarea 35 e, a form, in which a numerical value corresponding to thenumber of LTE base transceiver stations is attached to one LTE cellicon, is displayed.

In the present embodiment, as shown in FIG. 15, the simulation model isdisplayed in the simulation model display area 33 b 2 in a form in whichone icon and the number of cells (numerical value) are combined for eachof NR and LTE RAT. Therefore, even in a case where the number of NR andLTE cells increases, all cells can be detected.

In the present embodiment, the simulation model setting screen 33 b hasthe RAT cell number setting area 33 b 1 (RAT cell number setting screen)and the simulation model display area 33 b 2. Therefore, a user is ableto set the simulation model while confirming the simulation model on thesimulation model setting screen 33 b.

The simulation parameter setting screen used in the simulation parametersetting in step S36 of FIG. 6 includes, for example, a simulationparameter setting screen 33 c 1 shown in FIG. 9 and a simulationparameter setting screen 33 c 2 shown in FIG. 10. Each screen can bedisplayed as the simulation parameter display area 33 a 4 on the mainscreen 33 a by selecting (clicking) the tab 41 a or the tab 41 b of themain screen 33 a. A user is able to set the above-mentioned variousparameters for NR or LTE by using the simulation parameter settingscreens 33 c 1 and 33 c 2.

FIG. 16 shows an example of the connection confirmation/support requestscreen 33 d displayed in step S38 in a case where the connectionconfirmation/support request is input in step S37 of FIG. 6. FIG. 16shows an example of the connection confirmation/support request screen33 d displayed on the display unit 33 by the control device 22particularly in a case where the NR measurement device 20 and the LTEmeasurement device 21 are connected and operated in the connection modeshown in FIG. 4.

As shown in FIG. 16, the connection confirmation/support request screen33 d has a screen configuration in which a first connection diagramimage 33 d 1 and a second connection diagram image 33 d 2 are displayedto be adjacent to each other. The first connection diagram image 33 d 1is an image which indicates the exterior structure of the front paneland the rear panel of the NR measurement device 20 and in which thefront panel and rear panel are switchable. The second connection diagramimage 33 d 2 is an image which indicates the exterior structure of thefront panel and the rear panel of the LTE measurement device 21 and inwhich the front panel and rear panel are switchable.

The connection confirmation/support request screen 33 d is configured todisplay a connection mode for the connection destination of theconnection terminal in a form in which the connection destination namesof the connection terminals are noted so as to correspond to the imagesof the respective connection terminals on the front panel and the rearpanel of the first connection diagram image 33 d 1 and the secondconnection diagram image 33 d 2.

The display control unit 30 d of the control device 22 is configured todisplay an image that functions as a connection diagram by attachingconnection destination names changed in accordance with the settingcontents (scenario) of the parameters and the simulation set in step S36in FIG. 6 to the images of the respective connection terminals on thefront panel and the rear panel of the first connection diagram image 33d 1 and the second connection diagram image 33 d 2.

In the example of FIG. 16, destination names such as BTS1 Ant #1 Tx/Rxand BTS2 Ant #1 Tx/Rx are attached to the images of the respectiveconnection terminals on the rear panel (also the front panel) of thefirst connection diagram image 33 d 1. In addition, destination namessuch as LTE1 Ant #1 Tx/Rx˜LTE3 Ant #1 Tx/Rx and LTE1 Ant #2 Tx˜LTE3 Ant#2 Tx are attached to the images of the respective connection terminalson the front panel (also the rear panel) of the second connectiondiagram image 33 d 2. The display contents of the connectionconfirmation/support request screen 33 d function as a connectiondiagram including the connection mode for connection between the NRmeasurement device 20 and the LTE measurement device 21 and themeasurement antennas (NR and LTE antennas) corresponding to the antennasof the terminal 11 a as a measurement target.

As described above, the display control unit 30 d has a function ofdisplaying the connection diagram including at least a connection modefor connection between the NR measurement device 20 and the LTEmeasurement device 21 and the measurement antennas corresponding to theantennas of the terminal 11 a as a measurement target.

In the example of FIG. 16, the images of the respective connectionterminals (different from the connection terminals described above) onthe rear panel of the first connection diagram image 33 d 1 aredisplayed as follows. The connection destination names such as Ethernetand Sync Output are attached thereto so as to indicate a connection modefor connection between the LTE measurement device 21 corresponding tothe second connection diagram image. The connection destination namesuch as Control is attached thereto so as to indicate a connection modefor connection between the NR measurement device 20 and the LTEmeasurement device 21 and the control device 22. Therefore, the displaycontrol unit 30 d also has the function of displaying the connectiondiagram further including the connection mode for connection between theNR measurement device 20 and the LTE measurement device 21 and theconnection mode for connection between the NR measurement device 20 andthe LTE measurement device 21 and the control device 22.

In the present embodiment, since the connection diagram has the displayform shown in FIG. 16, the connection mode can be easily detected, andthe connection operation can be easily and promptly performed.

Next, a display processing procedure in a stage of execution of themeasurement of the terminal 11 a will be described with reference to aflowchart shown in FIG. 8.

In the measurement device 1A having the connection configuration shownin FIG. 4, after the control device 22 completes the processing ofsetting the number of RAT cells, setting and confirming the simulationmodel, and setting the simulation parameters (refer to S34 to S36 inFIG. 6). For example, after returning to the display of the main screen33 a (step S41), the measurement control unit 30 c of the control device22 determines whether or not an instruction to start the measurement ofthe terminal 11 a is input from the operation unit (step S42). If it isdetermined that the instruction to start the measurement is not input(NO in step S42), the processing proceeds to step S47.

In contrast, if it is determined that the instruction to start themeasurement is input (YES in step S42), the measurement control unit 30c collectively controls the NR measurement device 20 and the LTEmeasurement device 21, and starts the measurement of the terminal 11 a(Step S43). in a case where measuring the terminal 11 a, the measurementcontrol unit 30 c captures a signal transmitted to and received from theterminal 11 a as a measurement target while controlling the drive of theNR measurement device 20 and the LTE measurement device so as tosimulate the operation of each base transceiver station in thenon-standalone NR in accordance with a preset scenario (step S44), andmeasures the terminal 11 a on the basis of the captured signal. On theother hand, the display control unit 30 d displays change in themeasurement-related information on the main screen 33 a and the like byreflecting the signal captured in step S43 (step S45).

As an example of the display of change in step S45, the display controlunit 30 d displays the respective connection statuses of the NR area andthe LTE area in the non-standalone NR network in the connection statusdisplay area of the main screen 33 a. Specifically, for example, asshown in FIGS. 9 to 12, the display control unit 30 d performs displayin a form in which rectangular frames corresponding to the number ofbase transceiver stations corresponding to each area set in the currentmeasurement are vertically stacked to be adjacent to the BTS iconsindicating the base transceiver stations in each of the NR area and theLTE area.

While displaying the main screen 33 a on which display is changed instep S45, the display control unit 30 d monitors whether or not theconnection status area 33 a 2 of the main screen 33 a is selected(clicked) (step S45). Here, if it is determined that the connectionstatus area 33 a 1 of the main screen 33 a is not clicked (NO in StepS45), the processing proceeds to Step S47.

In contrast, if it is determined that the connection status area 33 a 2of the main screen 33 a is clicked (YES in step S45), for example, a DCoperation confirmation screen 33 e shown in FIG. 17 is displayed on thedisplay unit 33 (step S46). The DC operation confirmation screen 33 ehas a DC operation status display area 33 e 2 for displaying an image ofthe DC operation status. In the example of FIG. 17, the display controlunit 30 d displays, as images, the operation mode based on the DC systemin the NR area and the operation mode based on the CA system in the LTEarea, in the DC operation status display area 33 e 2.

In the display processing of step S46, a DC operation confirmationscreen 33 f (refer to FIG. 18) having a screen structure different fromthat of the DC operation confirmation screen 33 e can be displayed. Alsoin the DC operation confirmation screen 33 f, the DC operation statusdisplay area 33 e 2 displays the operation mode based on the DC systemin the NR area and the operation mode based on the CA system in the LTEarea as images.

During the display processing of the DC operation confirmation screen 33e (or 33 f) in step S46, or after the display processing is completed,for example, in a state where the display is returned to the main screen33 a, the display control unit 30 d determines whether or not anoperation confirmation request for issuing an instruction to confirm theoperation status relating to the measurement of the terminal 11 a isinput (step S47). If it is determined that the operation confirmationrequest is not input (NO in step S47), the processing proceeds to stepS49.

In contrast, if it is determined that the operation confirmation requestis input (YES in step S47), the display control unit 30 d causes thedisplay unit 33 to display an operation confirmation screencorresponding to the request (step S48).

Regarding the processing of steps S47 and S48 in FIG. 8, in a case wherea test case confirmation request is input in step S47, for example, thedisplay control unit 30 d displays, in step S48, a test caseconfirmation screen 33 g as shown in FIG. 19. In addition, for example,in a case where a component confirmation request is input in step S47,the display control unit 30 d displays, for example, a componentconfirmation screen 33 h as shown in FIG. 20 in step S48. In addition,in response to the component confirmation request, for example, acomponent confirmation screen 33 i as shown in FIG. 21 may be displayed.

In addition, for example, in a case where a power characteristicconfirmation request is input in step S47, the display control unit 30 ddisplays, for example, in step S48, the power characteristicconfirmation screen 33 j as shown in FIG. 22 is displayed, and in a casewhere a throughput confirmation request is input in step S47, forexample, a throughput confirmation screen 33 k as shown in FIG. 23 isdisplayed in step S48.

With the various operation confirmation screens displayed in step S48,the display control unit 30 d determines whether or not an end requestfor issuing an instruction to end the processing is input (step S49).Here, if it is determined that the end request is not input (NO in stepS49), the display control unit 30 d returns to step S41 in accordancewith the instruction to return the processing, displays the main screen33 a, and then continues the processing in and after step S41.

In contrast, if it is determined that the end request is input (YES instep S49), the display control unit 30 d ends the above-described seriesof display control in the measurement stage of the terminal 11 a.

Next, the display forms of the DC operation confirmation screens 33 eand 33 f (refer to FIG. 17 and FIG. 18) relating to a series of displaycontrol shown in FIG. 8, the test case confirmation screen 33 g (referto FIG. 19), the component confirmation screens 33 h and 33 i (refer toFIGS. 20 and 21), the power characteristic confirmation screen 33 j(refer to FIG. 22), and the throughput confirmation screen 33 k (referto FIG. 23) will be described in more detail.

Both the DC operation confirmation screens 33 e (refer to FIG. 17) and33 f (refer to FIG. 18) displayed in step S46 can be displayed, forexample, by performing a click operation near the display area of the NRcell icon and the LTE cell icon in the connection status display area 33a 2 of the main screen 33 a (refer to FIG. 8) after the measurement ofthe terminal 11 a is started. The DC operation confirmation screens 33 eand 33 f respectively have an operation data display area 33 e 1 and anoperation image display area 33 e 2. The DC operation confirmationscreen 33 e and the DC operation confirmation screen 33 f are displayexamples in a case where settings for the DC operation are different,and there is no difference in the screen configuration. The DC operationconfirmation screen 33 e shows a scroll status in which the operationdata display area 33 e 1 is easily viewed, and the DC operationconfirmation screen 33 f shows a scroll status in which the operationimage display area 33 e 2 is easily viewed.

As shown in FIGS. 17 and 18, in the DC operation confirmation screens 33e and 33 f, the operation data display area 33 e 1 has an NR operationdata display area and an LTE operation data display area. In the NRoperation data display area, detailed data according to a DC operationmode in which CCs of different base transceiver stations in the NR areaare bundled is displayed. In the LTE operation data display area,detailed data relating to an operation mode based on the CA system thatbundles CCs of the same base transceiver station in the LTE area isdisplayed.

Further, in the operation image display area 33 e 2 in the DC operationconfirmation screens 33 e and 33 f, the operation mode based on the DCsystem in the NR area and the operation mode based on the CA system inthe LTE area are displayed using images indicating the respectiveoperation modes. For example, in the operation image display area 33 e 2of the DC operation confirmation screen 33 f shown in FIG. 17, an image,in which one rectangular frame is attached to the NR cell icon whilethree rectangular frames are attached to the LTE cell icon, isdisplayed, and an image, in which a base transceiver stationcorresponding to the rectangular frame displayed and attached to the NRcell icon and three base transceiver stations respectively correspondingto the three rectangular frames attached to the LTE cell iconcommunicate with the user equipment UE indicating the terminal 11 a, isdisplayed. In the operation image display area 33 e 2 of the DCoperation confirmation screen 33 e shown in FIG. 17, the same kind ofimages are displayed although it is difficult to view the images at thescroll position.

As described above, the display control unit 30 d has a display functionof displaying images indicating an operation mode based on the DC systemin the NR area and an operation mode based on the CA system in the LTEarea.

In the present embodiment, by adopting the display form shown in theoperation image display area 33 e 2 of FIGS. 17 and 18, the operationstatus of the DC system and the CD system in the non-standalone NR canbe easily detected.

The screens, which can be displayed in step S48 of FIG. 8, include thetest case confirmation screen 33 g (refer to FIG. 19), componentconfirmation screens 33 h and 33 i (refer to FIG. 20 and FIG. 21), thepower characteristic confirmation screen 33 j (refer to FIG. 22), andthe throughput confirmation screen 33 k (refer to FIG. 23).

The test case confirmation screen 33 g is a screen for setting anoptional cell from the NR cell or the LTE cell, performing a measurementof the terminal 11 a on a trial basis, and confirming the radiocondition of the set cell. The test case confirmation screen 33 g can bedisplayed in a predetermined area on the main screen 33 a in a mannershown in FIG. 19 in accordance with a tab selection operation on themain screen 33 a, for example, during execution of the above-describedtest measurement.

In the measurement device 1A according to the present embodiment, in acase where the tab selection operation is performed, the display controlunit 30 d displays an image, which shows the radio condition of the NRcell or LTE cell being set as a test case, in the form shown in FIG. 19,on the basis of the setting contents of the number of RAT cells and thesignal which is input from the NR measurement-related informationdetermination unit 13 k of the pseudo base transceiver station controlunit 4.

The test case confirmation screen 33 g shown in FIG. 19 particularlyrelates to an LTE cell. At this time, the display control unit 30 ddraws an image, to which a label text (identification information)including the RAT name “LTE” and the base transceiver station number(BTS number) of the LTE cell is attached, on the LTE cell iconrepresented by the LTE abbreviation “L”. In the example of FIG. 19, animage in which a label text “LTE1” is attached to the LTE cell icon isdisplayed. The image includes a line segment indicating, for example, anelliptical wireless range of a cell being set as a test case.

Similarly, in the test case confirmation screen 33 g in a case where anNR cell is set as a test case, the display control unit 30 d draws animage in which a label text including the RAT name “NR” and the BTSnumbers “1, 2, 3, . . . ” of the NR cells is attached to the NR cellicon represented by the abbreviation symbol “N” for NR.

As described above, in the present embodiment, the display control unit30 d has a display function of displaying the test case confirmationscreen for confirming the radio condition of the cell which is set asthe test case among the NR cells or the LTE cells and drawing an imagein which identification information including the RAT name and the basetransceiver station number of the cell is attached to the NR cell iconor LTE cell icon corresponding to the RAT type for each cell set as atest case on the test case confirmation screen 33 g.

In the present embodiment, the test case confirmation screen 33 g isdisplayed in a form in which a label text in the format of “RAT name”and “BTS number” is attached to the NR cell icon or LTE cell icon.Therefore, even in a case where the number of BTSs is increased, thedisplay space is sufficient, and the visibility can be ensured.

The component confirmation screens 33 h and 33 i are screens forconfirming the carrier operation status during measurement of theterminal 11 a between cells which are set as a combination for executinga scenario, and respectively have, for example, screen configurations asshown in FIGS. 20 and 21. The component confirmation screens 33 h and 33i are common in that the CC is indicated by a carrier icon having arectangular shape with rounded corners, for example, but differ in amethod of bundling carriers for LTE. The component confirmation screen33 h shows an example in which carriers are bundled into one frequencyband (band) in LTE, and the component confirmation screen 33 i shows anexample in which the carriers are bundled into a plurality of bands (twobands).

As shown in FIG. 20, the component confirmation screen 33 h has acarrier operation display area 33 h 1 and a CA/DC setting conditiondisplay area 33 h 2. In the carrier operation display area 33 h 1, thecarrier use status between the RAT cells being set is displayed using acarrier icon. As shown in FIG. 20, the component confirmation screen 33h has a screen configuration that represents the bands bundled byarranging the component icons corresponding to several CCs that are thecomponents of the bundled frequency bands.

Specifically, in the component confirmation screen 33 h, display areas35 f and 35 g corresponding to the master node and the secondary nodeare ensured in the carrier operation display area 33 h 1. In the uppermaster node display area 35 f, an LTE cell icon is displayed next to thenotation “Master Node”, and below the LTE cell icon, component iconscorresponding to the CC bundled as Band 1 are arranged in the horizontaldirection, and those are displayed to be divided into DL (downlink) andUL (uplink). In the example of FIG. 20, for the DL, three componenticons respectively corresponding to three CCs that are radio resourcesof LTE1, LTE2, and LTE3 are displayed. For UL, a component iconcorresponding to one CC that is a radio resource of LTE1 is displayed.

All component icons have, for example, rectangular shapes with roundedcorners and the same size. However, the component icon corresponding tothe CC that is the radio resource of the master node and the componenticon corresponding to the CC that is the radio resource of the secondarynode are displayed in different colors. In FIG. 20, for example, thecomponent icons displayed in blue are hatched. The component icons nothatched are displayed in red, for example.

Further, in each component icon, identification information foridentifying a cell as a resource source is described inside the icon. Asthe identification information, for example, a label text including aRAT name and a base transceiver station number is used. A numericalvalue (for example, “10”, in units of MHz) indicating the band of eachcorresponding CC is noted above each component icon, and a total valuethereof (for example, “30 MHz”) is noted next to the numerical value. Asymbol indicating that the corresponding CCs are bundled together and aband name (for example, Band1) are noted below the component icons.

In the display area 35 g of the secondary node below the display area 35f of the master node in the carrier operation display area 33 h 1, an NRcell icon is displayed beside the notation of “secondary Node”, andbelow the notation, for example, the component icons corresponding tothe CCs bundled as BTsn77 are displayed. The component icons in thedisplay area of the secondary node are basically displayed in theabove-described display form of the component icons in the display areaof the master node.

Similarly to the component confirmation screen 33 h, the componentconfirmation screen 33 i shown in FIG. 21 has a screen configurationincluding a carrier operation display area 33 i 1 and a CA/DC settingcondition display area 33 i 2. However, the configuration of the CA/DCsetting condition display area 33 i 2 is a screen configurationdifferent from the CA/DC setting condition display area 33 h 2 in thecomponent confirmation screen 33 h.

In the carrier operation display area 33 i 1 of the componentconfirmation screen 33 i, the component icons are displayed in a mannerdifferent from that of the carrier operation display area 33 h 1 (referto FIG. 20) so as to correspond to the CA/DC setting condition displayarea 33 i 2. In the example of FIG. 20, the display form of thecomponent icons relating to DL in the display area 35 f of the masternode of the carrier operation display area 33 i 1 is different from thatof the carrier operation display area 33 h 1. The DL in the display area35 f of the master node of the carrier operation display area 33 i 1 isdisplayed in such a manner that it is possible to know a situation whereBand1 corresponding to the radio resource of LTE1 and Band3 that bundlesthe radio resources of LTE2 and LTE3 are used. The display form of theother part of the carrier operation display area 33 i 1 is the same asthat of the carrier operation display area 33 h 1.

As described above, in the measurement device 1A according to thepresent embodiment, the display control unit 30 d has a display functionof displaying the component confirmation screen and the component iconsclassified into a master node, a secondary node, an uplink and adownlink. In the component confirmation screen, the component iconshaving the same shape indicating the CCs to be bundled on the basis ofthe CA system and the DC system are arranged, the identificationinformation including the RAT name and the base transceiver stationnumber serving as a resource of the CC is noted in each component icon,and a bandwidth of the CC is noted above the component icon.

Conventionally, as a method of confirming the CC, for example, there isa method in which the width of the component icon is changed anddisplayed in accordance with the value of the bandwidth set for eachBTS. Further, conventionally, as image drawing for multi-cells, there isimage drawing for only LTE.

On the other hand, in the present embodiment, as shown in FIGS. 20 and21, the component icons are unified into the same shape and are alldisplayed with the same width, and are displayed in a form in which theidentification information including the RAT name and the basetransceiver station number is noted in the component icon and thebandwidth is noted above the component icon. For this reason, in thepresent embodiment, even in a case where the number of BTSs increases,the display area can be spread horizontally, and the RAT type can beeasily detected.

The power characteristic confirmation screen 33 j has, for example, apower characteristic display area 33 j 1, a power adjustment displayarea 33 j 2, and an operation status display area 33 j 3, as shown inFIG. 22. The power characteristic display area 33 j 1 is an area fordisplaying the power of the component carrier of the set cell using agraph in which the horizontal axis represents time and the vertical axisrepresents power. The power adjustment display area 33 j 2 is an areafor displaying setting items for power adjustment of component carriersof each cell. The operation status display area 33 j 3 is an area wherean image of the operation status of each cell is drawn using each celland each image which indicates the terminal 11 a as a measurementtarget.

The power characteristic confirmation screen 33 j can be displayed by,for example, a tab operation on the main screen 33 a as necessary. Inorder to display the power characteristic confirmation screen 33 j, thecontrol unit 31 (refer to FIG. 5) of the control device 22 includes apower detection function unit, which is not shown, for detecting thepower of a component carrier as a resource of each NR and LTE cells, forwhich a combination is set in accordance with a scenario, on the basisof the signal (the signal transmitted from the terminal 11 a during thesimulative communication) which is output by the NR measurement-relatedinformation determination unit 13 k of the pseudo base transceiverstation control unit 4. The power detection function unit may beprovided in another position, for example, in the display control unit30 d.

The display control unit 30 d draws, as a graph, the powercharacteristics (characteristics of change in power value with respectto time) of the component carriers of the NR and LTE cells detected bythe power detection function unit in the power characteristic displayarea 33 j 1 compliant with the NR cells and the LTE cells.

Conventionally, this type of display of the power characteristiccorresponds only to LTE, and the power of each cell is not displayedcompliant with LTE and NR as in the present embodiment. According to theconfiguration of the present embodiment in which the powercharacteristics of the NR cell and the LTE cell are displayed on thesame graph, the power characteristics of the NR cell and the LTE cellrelating to DC in the non-standalone NR can be easily and reliablydetected.

The display control unit 30 d draws an operation status image of the NRcells and the LTE cells in the operation status display area 33 j 3 inaccordance with the display of the graph showing the powercharacteristics of the NR cell and the LTE cell in the powercharacteristic display area 33 j 1 of the power characteristicconfirmation screen 33 j.

Here, for example, as shown in FIG. 22, there are a plurality of basetransceiver stations which are set as cells to be subjected to thesimulative communication operation in the NR area and the LTE area. Inthis case, the display control unit 30 d performs display such that twoNR cell icons and two LTE cell icons respectively corresponding to thefirst and last base transceiver stations are displayed side by side foreach of the NR area and the LTE area, and performs display in a form inwhich the identification information pieces in which the RAT names, thefirst base transceiver station numbers, and the last base numbers areseparately listed are noted in association with the two NR cell iconsand the two LTE cell icons.

Specifically, in the example of FIG. 22, in the NR area, the displaycontrol unit 30 d performs display in a form in which the two NR cellicons with the symbol “NR” are arranged side by side and the first basetransceiver station number subsequent to “NR” and the next basetransceiver station number “2” are noted to be separated by, forexample, a comma below both NR cell icons. Similarly, in the LTE area,the display is performed in a form in which two LTE cell icons with theLTE abbreviation [L] are arranged side by side and the first basetransceiver station number “1” subsequent to “LTE” and the next basetransceiver station number “3” are noted to be separated by commas belowboth LTE cell icons.

As a modification example in this case, in a case where three or morecells are set, the display control unit 30 d may change the display formrelating to “NR1, 2” and “LTE1, 2, 3” in FIG. 22 to a display form of“NR1-3” and “LTE1-5” or the like by connecting the first basetransceiver station number and the last base transceiver station numberthrough, for example, a line segment.

As described above, in the measurement device 1A according to thepresent embodiment, there are a plurality of base transceiver stationswhich are set as cells in the NR area and the LTE area. In this case,the display control unit 30 d performs display such that two BTS icons(NR cell icon and LTE cell icon) respectively corresponding to the firstand last base transceiver stations are displayed side by side for eachof the NR area and the LTE area, and performs display in a form in whichone identification information piece in which the RAT name, the firstbase transceiver station number, and the last base number are separatelyarranged is attached to the two NR cell icons (first cell icons) and thetwo LTE cell icons (second cell icons). By providing this function, itis possible to deal with the non-standalone NR, and it is possible toeasily detect the operation status of the NR cell and the LTE cell.

The throughput confirmation screen 33 k has, for example, a throughputdisplay area 33 k 1 and a carrier operation status display area 33 k 2as shown in FIG. 23. The throughput display area 33 k 1 is an area fordisplaying the throughputs of the component carriers listed in thecarrier operation status display area 33 k 2 by using a graph in whichthe horizontal axis represents time and the vertical axis represents theprocessing amount (unit is, for example, kbps).

The throughput confirmation screen 33 k can be displayed by, forexample, a predetermined tab operation on the main screen 33 a. In orderto display the throughput confirmation screen 33 k, the control unit 31(refer to FIG. 5) of the control device 22 includes a throughputmeasurement function unit for detecting the throughput of a componentcarrier as a radio resource of each NR and LTE cells, for which acombination is set in accordance with a scenario, on the basis of thesignal (the signal transmitted from the terminal 11 a during thesimulative communication) which is output by the NR measurement-relatedinformation determination unit 13 k of the pseudo base transceiverstation control unit 4. The throughput measurement function unit may beprovided in another position such as the display control unit 30 d.

The display control unit 30 d draws, as a graph in the form shown inFIG. 23, the characteristic of the throughput of the component carrierused by each NR and LTE cells detected by the throughput detectionfunction unit, in the throughput display area 33 k 1.

Conventionally, the display of the throughput characteristic of thecomponent carrier generally corresponds to only the LTE. The display isnot performed such that the throughput characteristics of the NR celland the LTE cell compliant with the LTE and the NR are collectivelydisplayed at one place as in the present embodiment. According to theconfiguration of the present embodiment in which the throughputcharacteristics of the carriers that are the radio resources of the NRcell and the LTE cell are collectively displayed at one place as agraph, the throughput characteristics relating to the carriers of the DCNR cell and the LTE cell in the non-standalone NR can be detected easilyand reliably.

As described above, a communication terminal measurement system 1B ofthe present embodiment is configured to include: an NR measurementdevice 20 that is compliant with NR which is the first communicationstandard of the terminal 11 a; an LTE measurement device 21 that iscompliant with LTE which is the second communication standard of theterminal 11 a; a control device 22 that has a control unit 31controlling the terminal 11 a through the NR measurement device 20 andthe LTE measurement device 21, and a display unit 33 displaying controlcontents of the control unit 31. The communication terminal measurementsystem 1B tests the terminal 11 a by simulating three or more basetransceiver stations each of which is compliant with the NR and the LTE.The display unit 33 includes tabs 41 a and 41 b for identifying the NRor the LTE, a simulation parameter setting screen 33 c 1 for NR in whichsimulation parameters of respective base transceiver stations compliantwith the NR are displayed in array for each base transceiver station,and a simulation parameter setting screen 33 c 2 for LTE, in whichsimulation parameters of respective base transceiver stations compliantwith the LTE are displayed in array for each base transceiver station.In a case of receiving either the NR or the LTE on the tabs 41 a and 41b, the control unit 31 is configured to perform control for displayingthe simulation parameter setting screen 33 c 1 or the simulationparameter setting screen 33 c 2 in accordance with the tab 41 a or 41 bfor identifying the selected communication standard.

With such a configuration, the communication terminal measurement system1B of the present embodiment is able to display a list of simulationparameters of base transceiver stations compliant with the NR or theLTE. Thereby, it is easy to understand the simulation parameterinformation of a plurality of base transceiver stations corresponding toeach communication standard. As a result, even in a case where thenumber of base transceiver stations increases, it is possible toefficiently set the simulation parameters while viewing the overallsituation for each communication standard, and to easily confirm thesettings. In addition, the simulation parameters can be set and thesettings can be confirmed using two types of tabs 41 a and 41 b. Thus,it is possible to make a screen configuration, which is simpler, easierto view, and has better operability than that of the conventional systemthat requires the number of tabs corresponding to the number of basetransceiver stations.

Further, the communication terminal measurement system 1B according tothe present embodiment may be configured such that the display unit 33further includes a base transceiver station selection toolbar 45 inwhich base transceiver station selection tabs 46 for individuallyselecting base transceiver stations each of which is compliant with theNR and the LTE are arranged in a line; and a display command toolbar 47which is disposed adjacent to the base transceiver station selectiontoolbar 45, and the control unit 31 selects a base transceiver stationfor the NR or a base transceiver station for the LTE on the basetransceiver station selection tab 46, and then displays a connectionparameter of connection between any one of the selected base transceiverstations and the terminal 11 a in accordance with a selection operationof the display command toolbar 47.

With such a configuration, in the communication terminal measurementsystem 1B according to the present embodiment, it is possible to make ascreen, which is for displaying connection parameters of a basetransceiver station having a desired communication standard and a basetransceiver station number, have a simple configuration including twotoolbars of a base transceiver station selection toolbar 45, and adisplay command toolbar 47 and displaying only the connection parametersof the base transceiver station selected by the base transceiver stationselection toolbar 45. Thereby, it is possible to prevent the screen frombeing covered with toolbars and being difficult to view, as in aconventional system having the number of toolbars corresponding to thenumber of base transceiver stations and displaying connection parametersof a plurality of base transceiver stations. As a result, it is possibleto make the operation of confirming the connection parameters easy.

Further, the communication terminal measurement system 1B according tothe present embodiment is configured such that the display unit 33further includes a main screen 33 a which includes a connection statusdisplay area 33 a 2 and in which the base transceiver station selectiontoolbar 45 and the display command toolbar 47 are arranged and in whichthe tab 41 a or 41 b is provided, and the control unit 31 displays thesimulation parameter setting screen 33 c 1 for NR or the simulationparameter setting screen 33 c 2 for LTE in the connection status displayarea 33 a 2, in a case of receiving the selection of the tab 41 a or 41b.

With such a configuration, the communication terminal measurement system1B according to the present embodiment is able to ensure an area forsetting simulation parameters for the NR or the LTE on the connectionstatus display area 33 a 2 of the main screen 33 a in accordance withthe selection of the tab 41 a or 41 b. Thus, simulation parameters ofeach communication standard can be set and settings can be promptlyconfirmed.

Further, the communication terminal measurement system 1B according toanother aspect of the present embodiment is configured such that, in acase of receiving the selection of the tab 41 a or 41 b and then furtherreceives a predetermined non-display selection operation, the controlunit 31 hides the simulation parameter setting screen 33 c 1 for NR orthe simulation parameter setting screen 33 c 2 for LTE being displayed.

With such a configuration, the communication terminal measurement system1B according to another aspect of the present embodiment is able topromptly access the functions of the main screen 33 a while improvingthe performance while improving operability relating to the simulationparameter setting and setting confirmation by displaying the simulationparameter setting screen 33 c 1 for NR or the simulation parametersetting screen 33 c 2 for LTE.

Further, the communication terminal measurement system 1B according tothe present embodiment is configured such that the first communicationstandard is NR and the second communication standard is LTE. With such aconfiguration, in the communication terminal measurement system 1Baccording to another aspect of the present embodiment, it is possible toefficiently set simulation parameters while viewing the overallsituation for each NR and LTE communication standard, even in a casewhere either the number of NR base transceiver stations or the number ofLTE base transceiver stations increases. In addition, using only twotypes of tabs, it is possible to perform a smooth transition to the workof setting simulation parameters relating to NR and LTE and confirmingthe settings.

Further, the NR measurement device 20 or the LTE measurement device 21of the present embodiment has a configuration corresponding to eitherthe NR or the LTE, which is used in the communication terminalmeasurement system 1B according to the present embodiment.

With such a configuration, in the NR measurement device 20 or the LTEmeasurement device 21 according to the present embodiment, even in acase where the number of base transceiver stations compliant with the NRor the LTE increases, the communication terminal measurement system 1Baccording to the present embodiment is able to efficiently carry out thetest of the terminal 11 a corresponding to either the NR or the LTE inaccordance with the fact that the simulation parameters can beefficiently set while viewing the overall situation for eachcommunication standard and the setting can be easily confirmed. Inaddition, the NR measurement device 20 or the LTE measurement device 21of the present embodiment allows the communication terminal measurementsystem 1B according to any one of the above-described aspects to be ableto set the simulation parameter and confirm the setting by using twotypes of tabs, and to smoothly carry out tests of terminals 11 acompliant with either the NR or the LTE in accordance with a screenconfiguration which is simple, is comfortable to view, and has favorableoperability, as compared with the conventional system.

Further, a measurement device 1A according to the present embodimenttests a terminal 11 a by simulating three or more base transceiverstations each of which is compliant with a NR and a LTE. The measurementdevice 1A includes: a control unit 31 that controls the measurementdevice 1A; and a display unit 6 e that displays control contents of thecontrol unit 31. The display unit 6 e includes tabs 41 a and 41 b foridentifying the NR or the LTE, a simulation parameter setting screen 33c 1 in which simulation parameters of each of the base transceiverstations compliant with the NR are displayed in array for each basetransceiver station, and a simulation parameter setting screen 33 c 2for LTE in which simulation parameters of each of the base transceiverstations compliant with the LTE are displayed in array for each basetransceiver station, and the control unit 31 performs control such thatin a case of receiving selection of either the NR or the LTE on the tab41 a or 41 b, the simulation parameter setting screen 33 c 1 for NR orthe simulation parameter setting screen 33 c 2 for LTE is displayed inaccordance with the tab 41 a or 41 b for identifying the selectedcommunication standard.

With such a configuration, the measurement device 1A according to thepresent embodiment is able to display a list of simulation parameters ofbase transceiver stations respectively compliant with the NRs or theLTEs through the display control of the control unit 31. Thereby, it iseasy to understand the simulation parameter information of a pluralityof base transceiver stations corresponding to each communicationstandard. As a result, even in a case where the number of basetransceiver stations increases, it is possible to efficiently set thesimulation parameters while viewing the overall situation for each ofNRs or LTEs, and to easily confirm the settings. In addition, thesimulation parameters can be set and the settings can be confirmed usingtwo types of tabs 41 a and 41 b. Thus, it is possible to make a screenconfiguration, which is simpler, easier to view, and has betteroperability than that of the conventional system that requires thenumber of tabs corresponding to the number of base transceiver stations.

Further, a measurement device 1A according to the present embodimenttests a terminal 11 a by simulating three or more base transceiverstations each of which is compliant with a NR and a LTE. The measurementdevice 1A is controlled by the control device 22 including: a controlunit 31 that controls the measurement device 1A; and a display unit 33that displays control contents of the control unit 31. The display unit33 includes tabs 41 a and 41 b for identifying the NR or the LTE, asimulation parameter setting screen 33 c 1 in which simulationparameters of each of the base transceiver stations compliant with theNR are displayed in array for each base transceiver station, and asimulation parameter setting screen 33 c 2 for LTE in which simulationparameters of each of the base transceiver stations compliant with theLTE are displayed in array for each base transceiver station, and thecontrol unit 31 performs control such that in a case of receivingselection of either the NR or the LTE on the tab 41 a or 41 b, thesimulation parameter setting screen 33 c 1 for NR or the simulationparameter setting screen 33 c 2 for LTE is displayed in accordance withthe tab 41 a or 41 b for identifying the selected communicationstandard.

With such a configuration, the measurement device 1A according to thepresent embodiment is able to display a list of simulation parameters ofbase transceiver stations compliant with the NR or the LTE through thedisplay control in the control unit 31 of the control device 22.Thereby, it is easy to understand the simulation parameter informationof a plurality of base transceiver stations corresponding to eachcommunication standard. As a result, even in a case where the number ofbase transceiver stations increases, it is possible to efficiently setthe simulation parameters while viewing the overall situation for eachof NRs or LTEs, and to easily confirm the settings. In addition, thesimulation parameters can be set and the settings can be confirmed usingtwo types of tabs 41 a and 41 b. Thus, it is possible to make a screenconfiguration, which is simpler, easier to view, and has betteroperability than that of the conventional system that requires thenumber of tabs corresponding to the number of base transceiver stations.

Further, a measurement-related information display method of the presentembodiment simulates three or more base transceiver stations each ofwhich is compliant with a NR which is a first communication standard ofthe terminal 11 a and a LTE which is a second communication standard ofthe terminal 11 a and displaying measurement-related informationrelating to measurement of a terminal 11 a. The method includes:displaying a main screen 33 a having tabs 41 a and 41 b for identifyingthe NR or the LTE (S31); receiving a selection of either the NR or theLTE on the tab 41 a or 41 b (S36 a); and performing control to display,on the main screen 33 a, a simulation parameter setting screen 33 c 1for NR, in which simulation parameters of each of the base transceiverstations compliant with the NR are displayed in array for each basetransceiver station, or a simulation parameter setting screen 33 c 2 forLTE, in which the simulation parameters of each of the base transceiverstations compliant with the LTE are displayed in array for each basetransceiver station, in accordance with the tab 41 a or 41 b foridentifying the selected communication standard (S36 b, S36 c, S36 d).

With such a configuration, in the measurement-related informationdisplay method of the present embodiment, a list of simulationparameters of base transceiver stations compliant with the NR or the LTEis displayed, and the simulation parameters can be efficiently set whilethe overall situation is viewed for each communication standard even ina case where the number of base transceiver stations increases. As aresult, it is possible to display an operation screen which is easy toconfirm setting, is simple, is comfortable to view, and has favorableoperability.

Although the present embodiment has exemplified the operation mode inwhich 5GNR and LTE are mixed, the present embodiment may be applied toeven an operation mode in which LTE and pre-LTE, or future 5GNR and thenext communication standard are used.

INDUSTRIAL APPLICABILITY

As described above, the communication terminal measurement system, thecommunication terminal measurement apparatus, and themeasurement-related information display method according to the presentinvention are available for all of a communication terminal measurementsystem, a communication terminal measurement apparatus, and ameasurement-related information display method that test thecommunication terminal compliant with new and old communicationstandards and that has an effect capable of displaying an operationscreen which is comfortable to view and has favorable operability inorder to perform setting of simulation parameters and confirm thesetting even in a case where the number of base transceiver stationscompliant with old and new communication standards increases.

DESCRIPTION OF REFERENCE NUMERALS AND SIGNS

-   -   1A measurement device (communication terminal measurement        apparatus)    -   1B communication terminal measurement system    -   6 e NR measurement-related display unit (display unit)    -   11 a terminal (mobile communication terminal)    -   20 NR measurement device (communication terminal measurement        apparatus compliant with first communication standard)    -   21 LTE measurement device (communication terminal measurement        apparatus compliant with second communication standard)    -   22 control device    -   31 control unit    -   33 display unit    -   33 a main screen    -   33 a 2 connection status display area    -   33 c 1 simulation parameter setting screen (first simulation        parameter display area)    -   33 c 2 simulation parameter setting screen (second simulation        parameter display area)    -   41 a, 41 b tabs (tabs for selecting communication standard)    -   45 base transceiver station selection toolbar    -   46, 46 a, 46 b, 46 c, 46 d, 46 e, 46 f, 46 g base transceiver        station selection tab    -   47 display command toolbar

What is claimed is:
 1. A communication terminal measurement systemcomprising: a communication terminal measurement apparatus that iscompliant with a first communication standard of mobile communication; acommunication terminal measurement apparatus that is compliant with asecond communication standard of mobile communication; a control devicethat has a control unit controlling the communication terminalmeasurement apparatus compliant with the first communication standardand the communication terminal measurement apparatus compliant with thesecond communication standard, and a display unit displaying controlcontents of the control unit, wherein a mobile communication terminal istested by simulating three or more base transceiver stations each ofwhich is compliant with the first communication standard or the secondcommunication standard, the display unit includes tabs for identifyingthe first communication standard or the second communication standard,and the control unit performs control such that the display unitdisplays a first simulation parameter display area, in which simulationparameters of respective base transceiver stations compliant with thefirst communication standard are displayed in array for each basetransceiver station, in a case where the first communication standard isselected on the tabs, and the display unit displays a second simulationparameter display area, in which simulation parameters of respectivebase transceiver stations compliant with the second communicationstandard are displayed in array for each base transceiver station in acase where the second communication standard is selected on the tabs. 2.The communication terminal measurement system according to claim 1,wherein the display unit further includes a base transceiver stationselection toolbar in which base transceiver station selection tabs forindividually selecting base transceiver stations each of which iscompliant with the first communication standard or the secondcommunication standard are arranged in a line; and a display commandtoolbar which is disposed adjacent to the base transceiver stationselection toolbar, and after a base transceiver station for the firstcommunication standard or a base transceiver station for the secondcommunication standard is selected by the base transceiver stationselection tab, the control unit displays a connection parameter ofconnection between any one of the selected base transceiver stations andthe mobile communication terminal in accordance with a selectionoperation of the display command toolbar.
 3. The communication terminalmeasurement system according to claim 2, wherein the display unitfurther includes a main screen which includes a connection statusdisplay area and in which the base transceiver station selection toolbarand the display command toolbar are arranged and in which the tab isprovided, and the control unit displays the first simulation parameterdisplay area or the second simulation parameter display area in theconnection status display area, in a case of receiving the selection ofthe tab.
 4. The communication terminal measurement system according toclaim 3, wherein in a case where the control unit receives the selectionof the tab and then further receives a predetermined non-displayselection operation, the control unit hides the first simulationparameter display area or the second simulation parameter display areabeing displayed.
 5. The communication terminal measurement systemaccording to claim 1, wherein the first communication standard is NR,and the second communication standard is LTE.
 6. A communicationterminal measurement apparatus that tests a mobile communicationterminal by simulating three or more base transceiver stations each ofwhich is compliant with a first communication standard or a secondcommunication standard, the communication terminal measurement apparatuscomprising: a control unit that controls the communication terminalmeasurement apparatus; and a display unit that displays control contentsof the control unit, wherein the display unit includes tabs foridentifying the first communication standard or the second communicationstandard, a first simulation parameter display area in which simulationparameters of each of the base transceiver stations compliant with thefirst communication standard are displayed in array for each basetransceiver station, and a second simulation parameter display area inwhich simulation parameters of each of the base transceiver stationscompliant with the second communication standard are displayed in arrayfor each base transceiver station, and the control unit performs controlsuch that in a case of receiving selection of either the firstcommunication standard or the second communication standard on the tab,the first simulation parameter display area or the second simulationparameter display area is displayed in accordance with the tab foridentifying the selected communication standard.
 7. The communicationterminal measurement apparatus according to claim 6, wherein the displayunit further includes a base transceiver station selection toolbar inwhich base transceiver station selection tabs for individually selectingbase transceiver stations each of which is compliant with the firstcommunication standard or the second communication standard are arrangedin a line; and a display command toolbar which is disposed adjacent tothe base transceiver station selection toolbar, and after a basetransceiver station for the first communication standard or a basetransceiver station for the second communication standard is selected bythe base transceiver station selection tab, the control unit displays aconnection parameter of connection between any one of the selected basetransceiver stations and the mobile communication terminal in accordancewith a selection operation of the display command toolbar.
 8. Thecommunication terminal measurement apparatus according to claim 7,wherein the display unit further includes a main screen which includes aconnection status display area and in which the base transceiver stationselection toolbar and the display command toolbar are arranged and inwhich the tab is provided, and the control unit displays the firstsimulation parameter display area or the second simulation parameterdisplay area in the connection status display area in a case ofreceiving the selection of the tab.
 9. The communication terminalmeasurement apparatus according to claim 8, wherein in a case where thecontrol unit receives the selection of the tab and then further receivesa predetermined non-display selection operation, the control unit hidesthe first simulation parameter display area or the second simulationparameter display area being displayed.
 10. The communication terminalmeasurement apparatus according to claim 9, wherein the firstcommunication standard is NR, and the second communication standard isLTE.
 11. A measurement-related information display method of simulatingthree or more base transceiver stations each of which is compliant witha first communication standard or a second communication standard anddisplaying measurement-related information relating to measurement of amobile communication terminal, the method comprising: a step ofdisplaying a main screen having tabs for identifying the firstcommunication standard or the second communication standard; a step ofreceiving a selection of either the first communication standard or thesecond communication standard on the tab; and a step of performingcontrol to display, on the main screen, a first simulation parameterdisplay area, in which simulation parameters of each of the basetransceiver stations compliant with the first communication standard aredisplayed in array for each base transceiver station, or a secondsimulation parameter display area, in which the simulation parameters ofeach of the base transceiver stations compliant with the secondcommunication standard are displayed in array for each base transceiverstation, in accordance with the tab for identifying the selectedcommunication standard.